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Marion Baraban

@marionbaraban.bsky.social
205 followers 388 following 2 posts

Developmental and cell biologist: interested in cellular interactions in zebrafish. High resolution in vivo, dynamic & functional imaging. Skin cell & neuron.

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Reposted by Marion Baraban
Levayer Lab @levayerr.bsky.social · 24/09/2026
Only one week left to apply ! Check below for more details but the course will be great. Please spread the word 🙏
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Marion Baraban @marionbaraban.bsky.social · 24/09/2026
A funded postdoctoral position is available at the IBPS, Sorbonne University/CNRS/INSERM in Paris, to investigate the formation of the olfactory organ in zebrafish. We are looking for an postdoctoral researcher with expertise in transcriptomics and bioinformatics, (scRNAseq analysis).
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Development Ageing and Adaptation Research unit @dev2a-lab.bsky.social · 22/09/2026
📢Call for Group Leader in our unit within the Institut de Biologie Paris Seine in Paris @ibps.bsky.social www.ibps.sorbonne-universite.fr/fr/Recherche...
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Jeff Rasmussen @jraslab.bsky.social · 22/09/2026
🚨 New preprint from the lab! 🚨 Transcriptomic profiling identifies cellular and molecular transitions during Merkel cell regeneration www.biorxiv.org/content/10.6...
biorxiv.org
Transcriptomic profiling identifies cellular and molecular transitions during Merkel cell regeneration
Skin exhibits a remarkable capacity for regeneration, which requires the coordinated reconstitution of diverse cell types and structures. Merkel cells are mechanosensory cells that detect gentle touch...
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Osvaldo Chara @osvaldo-chara.bsky.social · 22/09/2026
We've just released StressNET: a machine-learning method that infers the mechanical state of tissues! Check it out! (1/8)
Mechanical stress inference (color-coded, right) from a microscopy image of a zebrafish neuromast (left).
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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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Zebrafish Rock! @zebrafishrock.bsky.social · 16/09/2026
More reasons to use your F2s!
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@MEmilieTerret @memilieterret.bsky.social · 02/09/2026
Great speakers, great science, great location = great meeting! EMBO workshop Forces across scale April 27-30, 2027 in Porto. meetings.embo.org/event/27-for...
meetings.embo.org
Forces across scales
This EMBO Workshop on Forces Across Scales will provide an integrative perspective on mechanobiology, a rapidly advancing field that examines how mechanical forces shape biological systems across mol…
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Benoit Ladoux @bladoux.bsky.social · 02/09/2026
Happy to share our new study @ijmonod.bsky.social on how surface curvature shapes multicellular organization and function. How curvature controls tissue chirality, patterns distinct architectures, and influences myogenic differentiation? www.biorxiv.org/content/10.6...
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Benoit Ladoux @bladoux.bsky.social · 02/09/2026
Happy to share our new preprint! We uncover how local force imbalances drive keratinocyte delamination and upward motion, while neighboring cells close the basal layer below. Amazing work from @andreasschoenit.bsky.social! www.biorxiv.org/content/10.6...
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Kate Cavanaugh @katecavanaugh.bsky.social · 25/08/2026
🧵 What if one reason fertility declines with age isn’t just genetic-but mechanical? Thrilled to share our new paper in @NatureCellBio : Elevated contractility drives implantation failure in mouse embryos from aged females… here’s what we found 👇 www.nature.com/articles/s41... 1/11
nature.com
Elevated contractility drives implantation failure in mouse embryos from aged females - Nature Cell Biology
Cavanaugh et al. show that embryos from aged mice have increased contractility and tissue viscosity on embryonic day 4.5, which leads to poor spreading and attachment. Similar age-associated mechanica...
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Benoit Ladoux @bladoux.bsky.social · 22/08/2026
Happy to share our new paper @natcomms.nature.com on the role of active nematics on myoblast fusion and myotube growth! www.nature.com/articles/s41... Amazinf work from @dubey837.bsky.social, @yoannletoquin.bsky.social and Aleksandra Ardaševa!
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Rafael Almeida @almeidalab.bsky.social · 25/07/2026
New preprint from the lab 🥳 We made new knock-in zebrafish 🐟 that fluorescently tag endogenous neurofascins. So now, we can live-image neuronal nfasca/NF186 and glial nfascb/NF155 non-invasively, as nerves, nodes of Ranvier and paranodes develop in vivo 🧵👇 www.biorxiv.org/content/10.6...
biorxiv.org
Live-imaging of endogenous neurofascins reveals glial adhesion shapes developing nodes of Ranvier
The organisation of myelinated axons into specialised domains is essential for saltatory conduction and depends on the polarised distribution of neuronal and glial cell-adhesion molecules, including n...
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Elena Scarpa & The Squeezable Cells Lab @squeezycellslab.bsky.social · 10/06/2026
We are thrilled to announce our new preprint from the wonderful @sorayavillaseca.bsky.social Ever wondered how cells squeeze through tiny spaces in embryos? Neural crest cells use Dynein to transport their nucleus along microtubules. Check out the preprint!! www.biorxiv.org/content/10.6...
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Jean Léon Maître @maitrejl.bsky.social · 09/06/2026
That's right! EQDB made it all the way to Japan 🇯🇵! Many thanks to @laghalab.bsky.social @juliebatut.bsky.social @robinjournot.bsky.social @leopoldlab.bsky.social @clotilde-cadart.bsky.social Vincent, Emma, Miquel, Clara and Kai! Join us @sfbd.bsky.social for more outreach activities
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MwahahahahahadScientist @mads100tist.bsky.social · 14/05/2026
I'm very happy to announce that the "From Postdoc to PI Session" will be sponsored by the @biologists.bsky.social and we will be offering a $$ Prize to the best talk, so now a twofer reason to apply! www.germanfishmeeting.org/from-postoc-... Let me know if you have any question/s! 🐟
germanfishmeeting.org
From Postoc to PI Session | German Fish Meeting
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Pau Guillamat @pauguillamat.bsky.social · 16/04/2026
Just published in @science.org 🚀 By controlling how cells align, we show that living nematic tissues can be programmed to generate forces and fold into predictable 3D shapes. A new platform for tissue engineering and the design of smart active materials! 🫆 www.science.org/doi/10.1126/...
science.org
Science | AAAS
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SFBD_BioDev @sfbd.bsky.social · 16/04/2026
🎉 Great success for our 2nd SFBD-SBCF science outreach day in Ivry-sur-Seine, with the support of the city! Over a thousand children came to take part in our workshops, led by around fifty researchers from institutes in Paris and Gif-sur-Yvette! Thank you all for your enthusiasm! 🔬🧬
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MwahahahahahadScientist @mads100tist.bsky.social · 14/04/2026
May 29th. If you're in Paris, mark your calendars. Lock your pipettes. TELL YOUR cHAIR. RUN FOR YOUR LIVES 🧪🐟
Image ALT: A seminar announcement at the Institut Jacques Monod, with my name and credentials, a picture of me and my work. The title of the talk is "Spatiotemporal Emergence of Somatosensory Neuron Diversity" Friday 29th of May 2026 at 11:45am. Then location info, CNRS logos. The background is white and most of the info is in orange and white letters.
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SFBD_BioDev @sfbd.bsky.social · 10/04/2026
www.science.org/doi/10.1126/...
science.org
Hyaluronic acid and tissue mechanics orchestrate mammalian digit tip regeneration
Tissue regeneration is rare in mammals, but the digit tip can regrow after amputation, whereas injuries beyond the nail do not. How the microenvironment drives divergent outcomes remains unclear. In this study, we found that the extracellular matrix (ECM)...
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Eric Peterman @errricpeterman.bsky.social · 10/04/2026
Happy #fluorescencefriday (and start of vacation!) to all those who are celebrating Lifeact-labeled epidermal stem cells closing a wound after in vivo adult zebrafish skin injury
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Akankshi Munjal @akankshi.bsky.social · 30/03/2026
🐟!JOB ALERT!Duke, Durham, NC!🐟 We are looking for a research tech (our current tech is starting grad school this Fall (Yay!)). The candidate will contribute to our ongoing research projects on tissue morphogenesis using zebrafish. Please RT🙏 www.munjallab.com/join-us
munjallab.com
Opportunities — Principles of Tissue Morphogenesis (Munjal Lab)
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Levayer Lab @levayerr.bsky.social · 27/03/2026
Happy to share the heroic effort of @gaellel.bsky.social to reduce our segmentation pain through EpiCure (Epithelial Curation), a napari plugin easing the curation of epithelial segmentation developed with several groups of @devstempasteur.bsky.social. www.biorxiv.org/content/10.6... See more 👇
biorxiv.org
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Development Ageing and Adaptation Research unit @dev2a-lab.bsky.social · 16/03/2026
🆁🅴🅼🅸🅽🅳🅴🆁 Spread the word 📢 & mark your 🗓️!! The 1st edition of the Dev2A symposium series will be held on May 7, 2026. 👉Inspiring invited speakers & opportunities for selected talks and posters from submitted abstracts ! ➡️Registration link : lnkd.in/eUyfAbmG ➡️Abstract submission deadline : March 30th
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epithelial mechanics fan club @epimechfc.bsky.social · 15/03/2026
How do tissues maintain their integrity? Let's discuss epithelial fractures! High tissue tension can cause cells to break their contacts, leading to rupture!
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Development Ageing and Adaptation Research unit @dev2a-lab.bsky.social · 02/02/2026
Spread the word 📢 & mark your calendars 🗓️!! The first edition of the Dev2A symposium series will be held on May 7, 2026. 👉Inspiring invited speakers & opportunities for selected talks and posters from submitted abstracts!! ➡️Registration: free but mandatory ➡️More information to come very soon
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Development Ageing and Adaptation Research unit @dev2a-lab.bsky.social · 09/03/2026
Offre d'emploi | Ingénieur·e d'études plateau technique iPSC – Sorbonne Université Concours externe | Affectation : Unité Dev2A – IBPS, Paris www.enseignementsup-recherche.gouv.fr/fr/recruteme... #Recrutement et #Ingénieurd’études#SorbonneUniversité #CellulesSouches #iPSC #Recherche #CNRS #Inserm
enseignementsup-recherche.gouv.fr
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Rodrigo Fernandez-Gonzalez @rodrigofg.bsky.social · 20/02/2026
Check out our new publication @dev-journal.bsky.social! If you thought that cell divisions challenge tissue boundaries ... you got half of the story! Using in vivo quantitative microscopy and math. modelling we show that divisions fluidize tissues and facilitate boundary refinement. 🧪 #drosophila
journals.biologists.com
Cell divisions both challenge and refine tissue boundaries in the Drosophila embryo
Highlighted Article: A combination of mathematical modelling, in vivo quantitative microscopy, and pharmacological and biophysical manipulations reveals that cell divisions not only challenge, but als...
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Rashmi Priya @rashmi-priya.bsky.social · 11/02/2026
Our latest with @torres-sanchez.bsky.social journals.biologists.com/dev/article-... Breaking isn’t always a bad thing! Think of birth, seed release... We highlight how living tissue not only tolerates fractures but actively fracture to grow, shape, reproduce, or adapt – across species and scales.
journals.biologists.com
Break to build: fracture as a unifying morphogenetic strategy
Summary: This Review presents mechanical fracture as a unifying morphogenetic strategy and describes how developmental systems actively exploit mechanical fracture to drive morphogenesis, reproduction...
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Alejandro Torres-Sánchez @torres-sanchez.bsky.social · 12/02/2026
Development builds... But it also breaks! Planarians split to reproduce. Hydra tears open a mouth. Embryos fracture to make cavities. Failure? No. Fracture is essential to development. Our new review on fracture physics and its uses in development: journals.biologists.com/dev/article/...
journals.biologists.com
Break to build: fracture as a unifying morphogenetic strategy
Summary: This Review presents mechanical fracture as a unifying morphogenetic strategy and describes how developmental systems actively exploit mechanical fracture to drive morphogenesis, reproduction...
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Katy Marshall-Phelps @katymarshallphelps.bsky.social · 17/12/2025
Very grateful to the RSMacDonald Trust for funding my pilot project to establish zebrafish models of STXBP1-related NDDs - a brilliant pre-Christmas 🎁 Thanks so much to the @almeidalab.bsky.social for their continued support!
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Dafni Hadjieconomou @drosostalis.bsky.social · 05/12/2025
Apply for a PhD in Paris!! A project to come and work with me and my team at the GutSense lab included in the list! 🪰🧠⛽
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Merlin Lange @merlinlange.bsky.social · 22/03/2025
Zoom-in on zebrafish head development captured with a light-sheet microscope. 🧪 #zebrafish #AcademicSky #DevBio #neuroskyence
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Cristina Pujades @cristinapujades.bsky.social · 06/10/2025
We are hiring ! Interested in understanding how neuronal cell diversity arises? Come and join us @upf.edu for a #PhD #FPI fellowship
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bioRxivpreprint @biorxivpreprint.bsky.social · 30/07/2025
Dynamic interactions between epithelial skin cells and a sensory cavity sculpt the growing olfactory orifice www.biorxiv.org/content/10.1101/202…
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epithelial mechanics fan club @epimechfc.bsky.social · 20/07/2025
If you’ve been following this account closely, you might already know methods to probe mechanics in vitro, but what about in live embryos? I’m @amichaut.bsky.social, and I’m going to share a few great papers on this aspect of #EpithelialMechanics.
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Manuel Thery @manuelthery.bsky.social · 08/07/2025
Ever wished to become an actin star? 😎 Then try getting suspended above a non-adhesive substrate. www.nature.com/articles/s41...
nature.com
A multicellular star-shaped actin network underpins epithelial organization and connectivity - Nature Communications
The combined role of cellular junctions and actomyosin networks in tissues remains unclear. Here, the authors identify a tissue-scale star-shaped network of actomyosin that preserves cell shape, limit...
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Esteban Hoijman @estebanhoijman.bsky.social · 18/06/2025
How innate immunity starts? Early embryos eliminate bacterial infections by epithelial phagocytosis, a conserved process from zebrafish to human embryos. Check our story: www.cell.com/cell-host-mi...
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Cristina Pujades @cristinapujades.bsky.social · 04/06/2025
Do you want to join us to work in neurodevelopmental biology? Please apply 👇 #SEBD
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epithelial mechanics fan club @epimechfc.bsky.social · 25/05/2025
What is buckling, and why is it relevant in understanding epithelial morphogenesis? 🧐 I am @onenimesa.bsky.social and I will share some papers to understand this aspect of #EpithelialMechanics
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Julia Eckert @juliaeckert.bsky.social · 25/05/2025
Our new review paper from @yap-lab.bsky.social is online - together with Virgile Viasnoff! 👉 'New directions in epithelial mechanoadaptation' www.sciencedirect.com/science/arti...
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vlecaudey.bsky.social @vlecaudey.bsky.social · 14/05/2025
New preprint from the lab!! Project was initiated by @chaitanyadingare.bsky.social and continued by Alicia Lardennois with quite some people involved on the way 🤗
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lyons-lab.bsky.social @lyons-lab.bsky.social · 14/05/2025
For those who want a distraction and/ or are interested, here's the latest from the group, led by Phil Braaker www.nature.com/articles/s41...
nature.com
Activity-driven myelin sheath growth is mediated by mGluR5 - Nature Neuroscience
Employing pharmacology, genetics and all-optical approaches in zebrafish, Braaker et al. find that neuronal activity influences the growth of myelin sheaths along axons by signaling through metabotrop...
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Zebrafish Rock! @zebrafishrock.bsky.social · 30/03/2025
Transgenic zebrafish larva expressing fluorescent markers in the developing mouth and olfactory epithelium. Credit to @intheor.bsky.social 🧪 #ZebrafishZunday
Maximum intensity z-projection of the face from a stained (fixed) embryo. Both transgenes are driven by a GAL4  enhancer trap line in the periderm of the larval epithelium.
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Zebrafish Rock! @zebrafishrock.bsky.social · 23/03/2025
Multicolored ‘skinbow’ cells on an adult zebrafish scale. Credit to Dr. Chen-Hui Chen (prev. Duke University). #ZebrafishZunday 🧪
Layer of multi-colored cells on the surface of a zebrafish scale.
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Development Ageing and Adaptation Research unit @dev2a-lab.bsky.social · 18/03/2025
Today, we listened to Dr Adam Ouzeri from the CQSB at Sorbonne Université, Paris.
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@MEmilieTerret @memilieterret.bsky.social · 20/02/2025
Check out our latest paper in Science Advances, in which we built a constriction-based microfluidic device to measure the deformability of oocytes to assess their mechanical properties with minimal impact. www.science.org/doi/10.1126/...
science.org
Noninvasive characterization of oocyte deformability in microconstrictions
A microfluidic measurement method translates oocyte mechanical characterization into oocyte quality assessment.
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Parichy Lab | Dave Parichy @dparichy.bsky.social · 18/02/2025
New NIH funded research from our group now out. We are interested in development and evolution of cell types and adult phenotypes. In this paper, postdoc Dylan Huang and collaborators asked how a pigmentary ornament of bright white cells develops on the fin of zebrafish. www.pnas.org/doi/10.1073/...
zebrafish pigment cells
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Carsen Stringer @computingnature.bsky.social · 12/02/2025
#Cellpose 3 paper now out. Not all images are perfect. Restore your images with Cellpose3 to get better segmentations, w/ @marius10p.bsky.social www.nature.com/articles/s41...
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Constantin Pape @cppape.bsky.social · 12/02/2025
After a long journey, Segment Anything for Microscopy is now published in Nature Methods! We significantly improve SAM for interactive and automatic segmentation in light and electron microscopy and build a user-friendly tool. www.nature.com/articles/s41...
Improvements in LM (top) and EM (bottom) of our micro-sam model (finetuned) compared to the default SAM model.
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