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Gaëlle Letort

@gaellel.bsky.social
763 followers 894 following 38 posts

Bioimage analysis and mathematical modelling, mainly in developmental biology. Research engineer @CNRS.bsky.social @pasteur.fr

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Reposted by Gaëlle Letort
IMAG'IC @imag-ic.bsky.social · 29/09/2026
The IMAG'IC team is back to offer you the "Introduction to the Use of #ImageJ" training course. 22 October 2026 (English) 4 November 2026 (French) institutcochin.fr/formations/f... @institutcochin.bsky.social @upcite.bsky.social @inserm.fr @cnrs.fr
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Reposted by Gaëlle Letort
BioImaging North America @bioimagingna.bsky.social · 21/09/2026
#HappyMicroscopyMonday #microscopycommunity - Can’t join us in Madison? You can still be part of I2KxBINA 2026 via Zoom Events! 🎟️ Virtual registration is FREE! 📅 Virtual registration closes September 27, 2026 Link: buff.ly/qoZqTbm
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Merlin Lange @merlinlange.bsky.social · 15/09/2026
🔬🧪 We're hiring postdocs&engineers at Institut de la Vision in AMAZING Paris 🇫🇷!! Join a dynamic team working at the nexus of retina developmental biology, spatial omics & advanced imaging Ambitious science in a supportive & young inclusive team 🚀 DM me for more info & please share 🙏 #academicsky
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paveltomancak.bsky.social @paveltomancak.bsky.social · 10/09/2026
This article seems to celebrate the shift from poor support for #software #engineers in research to pretending they aren't needed at all. Did we spend 2 decades consolidating fragmented software ecosystems into platforms only to see them dissolve through "vibe coding"? www.nature.com/articles/s41...
nature.com
Disruption of the research software landscape through AI software generation - Nature Methods
Specialized research software has historically been costly and time-consuming to create, but large language models (LLMs) have become capable enough at code generation to fundamentally change this. We...
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Reposted by Gaëlle Letort
FocalPlane @focalplane.bsky.social · 04/09/2026
It’s #preprint list time! This week we focus on new research in bioimage analysis. Let us know if you have any suggestions for us to add to our list. focalplane.biologists.com/2026/09/04/m...
focalplane.biologists.com
Microscopy preprints: bioimage analysis - FocalPlane
Microscopy preprints: bioimage analysis - News
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Reposted by Gaëlle Letort
Jean-Yves Tinevez @jytinevez.bsky.social · 03/09/2026
New version of #Mastodon-SC, the Fiji plugin to track and lineage cells in gigantic movies! What is Mastodon? 👉 in the preprint linked to the quote post What's new? 👇
liveimagetrackingtools.org
geff
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Gaëlle Letort @gaellel.bsky.social · 03/09/2026
The final version of the paper presenting our tool EpiCure is now online: journals.biologists.com/dev/article/... !! Thanks again to all collaborators in this project
journals.biologists.com
EpiCure (Epithelial Curation): a versatile and handy tool for curation of epithelial segmentation
Summary: EpiCure is a napari plugin designed to optimise epithelia segmentation and tracking curation through automatic errors detection and ergonomic correction while being easily interoperable with ...
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Reposted by Gaëlle Letort
@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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Reposted by Gaëlle Letort
mhverlhac.bsky.social @mhverlhac.bsky.social · 02/09/2026
Noemi Zollo's work is highlighted on the Collège de France website: www.college-de-france.fr/fr/actualite... Many thanks to the @cirbcdf.bsky.social , @college-de-france.fr, @cnrs.fr, @cnrsbiologie.bsky.social, @inserm.fr, @sorbonne-universite.fr, @ibdm.bsky.social
college-de-france.fr
Découverte d’un super-organite, le Zollo body, qui permet à l’ovocyte de mammifère de grandir | Collège de France
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Christopher Thomas @ovarylab.bsky.social · 31/08/2026
Excited to share this fantastic collaboration with the teams of @mhverlhac.bsky.social and @bokelab.bsky.social, where we identify and characterise the Zollo body — a transient RNP compartment that drives oocyte and follicle growth! 🥚🔬 www.science.org/doi/10.1126/...
Microscopy image of a growing oocyte enclosed within an ovarian follicle. Mitochondria are labelled in magenta, revealing the Zollo body as a distinct region next to the oocyte nucleus. Myosin II is shown in cyan, highlighting the surrounding cell structure.
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Reposted by Gaëlle Letort
jmutterer.bsky.social @jmutterer.bsky.social · 28/08/2026
I've made a video about Fig_Space, the next version of FigureJ. It has nice new features, I hope you like it. youtu.be/bTKcXN4p-JM
youtu.be
FigSpace Fiji plugin demo
YouTube video by jerome mutterer
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Crick BioImage Analysis Symposium @cbias.bsky.social · 08/06/2026
Fantastic line of speakers for this upcoming edition of #CBIAS26🤩 With a novelty this year: image analysis beyond bio! Let's all share expertise, who knows, maybe tracking stars accros the galaxy is as exciting and challenging as tracking cells accros a whole embryo? Share far and wide #microscopy
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David Green @greenbaron.bsky.social · 13/08/2026
Really excited to finally show off our work on the specification of neuroblasts. While it has been a long-standing model for lateral inhibition, we show that Notch does not select the NB, but instead reinforces fate decisions. www.cell.com/current-biol... @currentbiology.bsky.social
cell.com
Positional cues, not Notch, direct neuroblast selection during early neurogenesis in the Drosophila embryo
Using quantitative live imaging, Green et al. show that proneural gene expression is biased by positional cues and that Notch is activated only after neuroblast selection in the Drosophila embryo. Thi...
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Guillaume Jacquemet @guijacquemet.bsky.social · 30/06/2026
Delighted to share our latest preprint "NucleiSky enables cross-scale multimodal registration of microscopy data using nuclei constellations" www.biorxiv.org/content/10.6... Code and App: github.com/CellMigratio...
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Institut Pasteur | 130 years of biomedical research @pasteur.fr · 27/07/2026
In zebrafish, neural stem cells keep producing neurons throughout life. Pasteur scientists reveal how Notch3 signaling coordinates neighboring stem cells to maintain this balance, insights relevant to brain tumours. www.pasteur.fr/en/research-... @natcomms.nature.com #Neuroscience #StemCells
pasteur.fr
How Brain Stem Cells Coordinate to Produce Neurons
In many vertebrates, brain stem cells produce neurons throughout life. A team of scientists has revealed for the first time the molecular mechanisms by which adult neural stem cells communicate with o...
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Reposted by Gaëlle Letort
Ricardo Henriques @henriqueslab.bsky.social · 21/07/2026
🚀🔬 Can cell shape, signal and movement tell us about a cell's future? #DeepLearning studies now predict cell fate from #microscopy. Together w Rita, @mariodelr.bsky.social, @inesmcunha.bsky.social, @juliettegriffie.bsky.social + @guijacquemet.bsky.social👇 www.preprints.org/manuscript/202607.1414/v1
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Gaëlle Letort @gaellel.bsky.social · 10/07/2026
I'm super happy to be awarded the cnrs cristal medal dedicated to research support staff🥳🏅!! Even more delighted by the reactions to the announcement, huge thanks to all, I m lucky to work within such a nice community🫶!! Especially the welcoming amazing subgroup of core facility bioimage analysts🤩
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Al Jord Lab @aljordlab.bsky.social · 10/07/2026
🌱 We’re delighted to share that our lab has been awarded LEAF certification in recognition of our commitment to sustainable lab practices ! Thanks to @typhainee.bsky.social for coordinating the lab’s certification as Ecorep, and to Laura Tejada Sandy for coordinating the process across @crg.eu 👏
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Jean-Yves Tinevez @jytinevez.bsky.social · 09/07/2026
Congratulations to superstar and awesome colleague Gaëlle Letort @gaellel.bsky.social, bioimage analyst extraordinaire for THE CRYSTAL MEDAL OF THE CNRS 2026!!! 🥳🎉🕺🦄🥳 We work with amazing people www.insb.cnrs.fr/fr/personne/...
insb.cnrs.fr
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Zenlabpasteur.bsky.social @zenlabpasteur.bsky.social · 09/07/2026
Huge congrats @gaellel.bsky.social !!!! We are soooo proud of you !!!
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Levayer Lab @levayerr.bsky.social · 09/07/2026
Congratulation @gaellel.bsky.social for the crystal medal ! So well deserved, you've been transformative for the democratisation of image analysis and deep learning. www.insb.cnrs.fr/fr/talents/c...
insb.cnrs.fr
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Zenlabpasteur.bsky.social @zenlabpasteur.bsky.social · 07/07/2026
🚨 New pre-print alert! 🚨 Adult neural stem cell state and fate decisions are hidden within transcriptional heterogeneity. To find out how we decoded these heterogeneities to identify a molecularly encoded quiescence cycle, check out the pre-print on bioRxiv! doi: doi.org/10.64898/202...
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Levayer Lab @levayerr.bsky.social · 06/07/2026
After a quite long process, we are happy to share the last version of our article describing unexpected results regarding the coupling between local cell death and proliferation (heroic revision effort from @ralitzastaneva.bsky.social ) urldefense.com/v3/__https:/...
urldefense.com
A global response contributes to tissue size robustness upon local induction of apoptosis
Tissue resilience requires tight coupling between cell proliferation, growth, and death.1,2,3,4It is assumed to be based on compensatory proliferation…
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Admirable Women @admirablewomen.bsky.social · 16/06/2026
Cytogeneticist Dr. Barbara McClintock won the 1983 #Nobel Prize in Physiology or Medicine for her study of corn chromosomes--revolutionizing the field of cytogenetics. She is the only woman to be awarded an unshared Nobel Prize in this category. She was born #OTD in 1902. #WomenInSTEM
A black-and-white photograph from 1947 of American cytogeneticist Dr. Barbara McClintock (1902–1992), who would later win the 1983 Nobel Prize in Physiology or Medicine for discovering genetic transposition. She is seated in her laboratory at Cold Spring Harbor, deeply absorbed in her scientific work. Looking downward with a focused, serious expression, she wears delicate wire-rimmed glasses and a light-colored, buttoned lab coat over a collared shirt pinned with a round brooch. Her short, dark hair is parted to the side. Her right hand holds a fine tool over a petri dish, while her left hand rests carefully on the edge of another dish next to a glass specimen vial. On the table stands a large, black vintage compound microscope with multiple metal objectives. The composition centers on her meticulous hands and face, with a softly blurred background of lab shelves and window light, creating an intense, studious mood of historical scientific discovery.
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Anna Foix @afoix.bsky.social · 15/06/2026
BIC @eccv.bsky.social 2026 is OPEN! Show us your new CV, AI & Bio work🦠🔬 🚪: openreview.net/group?id=the... Thanks organisers for making it possible @alex-krull.bsky.social Peter Bajcsy @janfunkey.bsky.social @florianjug.bsky.social Qingjie Meng @virginieuhlmann.bsky.social @maweigert.bsky.social ✨
openreview.net
ECCV 2026 Workshop BIC
Welcome to the OpenReview homepage for ECCV 2026 Workshop BIC
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BioImaging North America @bioimagingna.bsky.social · 15/06/2026
#HappyMicroscopyMonday #microscopycommunity - Explore cutting-edge microscopy, strengthen your image analysis skills, connect with the community driving innovation! Join the imaging community in Madison, WI this fall and save with early bird pricing through June 22! Register now: buff.ly/EnOh8hO
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GloBIAS @globias.bsky.social · 08/06/2026
Are you facing challenges with image analysis? Get expert advice in next GloBIAS Free Help event on 22–26 June 2026 Apply until 17 June 2026 for a 40 min one-to-one online session Learn more at: www.globias.org/activities/g... #ImageAnalysis #globias-free-help
https://www.globias.org/activities/globias-free-help
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Jean-Yves Tinevez @jytinevez.bsky.social · 28/05/2026
Another outcome from the Appose processing hackathon: Cellpose simple tile processing in Fiji, with #imglib2 and #appose only. With @gaellel.bsky.social and @strigaud.bsky.social
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Institut Pasteur | 130 years of biomedical research @pasteur.fr · 20/05/2026
Study shows that a triad of adhesion molecules links neural stem cells to their glial niche in vivo. When this bridge is lost, glial tension increases, stressing stem cells, altering mitosis & genome integrity. A new view of brain development & mechano‑biology. 🔗 www.cell.com/developmenta...
cell.com
Adhesion-controlled mechanics of the glial niche regulate neural stem cell proliferative potential
Segú Cristina et al. move beyond epithelial and matrix-centric mechanotransduction models, demonstrating reciprocal mechanical regulation between distinct cell types and uncovering an original pathway...
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Jean-Yves Tinevez @jytinevez.bsky.social · 22/05/2026
Some news for bioimage analysis support in Paris - Yesterday we organized our first onsite and *multi-site* open-desk in bioimage analysis, between the Institut Pasteur @pasteur.fr and the Institut Jacques Monod @ijmonod.bsky.social
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Nisha Veits @nveits.bsky.social · 16/05/2026
Really happy to share my PhD story about the regulation of developmental speed in the Drosophila eye 🪰😃👀, which is now published @embojournal.org: link.springer.com/article/10.1... Grateful to everyone who make this possible, particularly F. Schweisguth @pasteur.fr @devstempasteur.bsky.social
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Damian Dalle Nogare @damiandn.bsky.social · 07/04/2026
🚨🚨🚨JOB ALERT🚨🚨🚨 The Image Analysis Unit at Human Technopole in Milan is recruiting for two positions to join our growing team: 1) Bioimage Analyst 2) Research Software Engineer (RSE) Read on to learn why one of these two people should be you!
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CNRS @cnrs.fr · 25/04/2026
Chaque recherche en ligne, requête sur ChatGPT ou vidéo visionnée a un coût invisible : son empreinte environnementale 🌍💻 Pourtant, difficile de l’évaluer faute de normes et de données. Le projet Altimpact, porté par CNRS, ADEME et Inria, relève le défi.
cnrs.fr
Empreinte environnementale du numérique : le CNRS fait les comptes
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BioImagingUK @bioimaginguk.bsky.social · 24/03/2026
🐍 Learn Python for Image Analysis — for free! UK life scientists: join EuroBioImaging's hands-on beginner course at The Crick in London (23–25 June), running simultaneously with sites in CZ, PT and SWE! ⏰ Register by 15 April — places are limited! ✈️ Travel funding may be available shorturl.at/v3Vsk
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MwahahahahahadScientist @mads100tist.bsky.social · 10/04/2026
"But the nightmare result is that non-programmer LLM users will receive something that seems to work, and only reveals its shortcomings much later on"
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Shweta Nandakumar @bucklingmt.bsky.social · 16/03/2026
Happy to share that the study is now published in Advanced Science 🙌🥳 : advanced.onlinelibrary.wiley.com/doi/10.1002/... I want to thank my co-authors and my amazing PI @lauraschaedel.bsky.social for all the help, lovely discussions and encouragement😀
advanced.onlinelibrary.wiley.com
Kinesin‐Induced Buckling Reveals the Limits of Microtubule Self‐Repair
This study shows that kinesin-driven buckling induces extensive microtubule lattice damage that often exceeds intrinsic self-repair and leads to filament failure. While curvature, motor motility, and...
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RogueESR @rogueesr.bsky.social · 02/04/2026
#VeilleESR #ESR Premières notifications officielles du soutien de base pour le CNRS: -25 % à INSU, -10% côté INEE, -25% pour INSB. Ce prélèvement s’ajoute aux 10 % que le CNRS a prélevé sur les Ressources Propres Banalisés de toutes les UMR en janvier 2026.
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Gaëlle Letort @gaellel.bsky.social · 27/03/2026
I'm happy to present our new tool, EpiCure, a napari plugin to ease correction of segmentation and tracking of epithelia movies, developed in @devstempasteur.bsky.social
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Bon Pote @bonpote.com · 17/03/2026
On oublie souvent qui est vraiment Rachida Dati. Les sourires sur les plateaux, les punchlines, mais aussi des casseroles, des procédures judiciaires, et potentiellement plus de 3,1 millions de pots de vin. Voilà ce qu'il devrait être rappelé systématiquement quand on parle de Rachida Dati !
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MwahahahahahadScientist @mads100tist.bsky.social · 16/03/2026
It's out! Happy to present ITEC, a semi supervised algorithm with an extremely low error rate that can track cells in files of any size (think Terabytes!). We used it in many organisms, including zebrafish, to study how organs form and linked it to gene expression www.biorxiv.org/content/10.6... +🧪
biorxiv.org
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Nicolas Dray @nicolasdray.bsky.social · 13/03/2026
Very happy to announce a short article on Fishfeats, with @gaellel.bsky.social ‬and @zenlabpasteur.bsky.social, now accepted in Bioinformatics doi.org/10.1093/bioi...
doi.org
FishFeats: streamlined quantification of multimodal labeling at the single-cell level in 3D tissues
AbstractSummary. Characterizing the distribution of biological marker expression at the single cell level in whole tissues requires diverse image analysis
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napari @napari.org · 11/03/2026
🔬 Registration is open for our pilot Introduction to napari Workshop! napari is a powerful open-source image viewer for scientific data analysis in Python. This hands-on workshop will get you exploring multi-dimensional datasets fast. #napari #Python #ImageAnalysis #DataScience #OpenSource
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Gaëlle Letort @gaellel.bsky.social · 10/03/2026
Thanks to #Appose hackaton with @jytinevez.bsky.social, @ctrue.bsky.social, @nkiaru.bsky.social, @msphan.bsky.social, @strigaud.bsky.social, Carlos, Thomas and Julie, DeXtrusion can be **INSTALLED** and run to detect cell extrusions directly from Fiji 🤩! Appose is amazing
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Jean-Yves Tinevez @jytinevez.bsky.social · 09/03/2026
2/ The IPEM-TOMO course: Cryo-ET : Image Processing for Electron Microscopy/Tomography, June 8 to 12.
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Jean-Yves Tinevez @jytinevez.bsky.social · 09/03/2026
1/ The Advanced Bioimage Analysis with Artificial Intelligence course. This course inherits from the NEUBIAS courses, and is now in its 3rd installment, with a new name research.pasteur.fr/en/course/ne...
research.pasteur.fr
Pasteur course Advanced Bioimage Analysis with Artificial Intelligence (AI) - 2026 - Research
Topics The course has a specific focus on hands-on and interactive tutorials. They are meant to be convivial and foster a collaborative atmosphere between students and teachers. Each day begin with a ...
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Jean-Yves Tinevez @jytinevez.bsky.social · 09/03/2026
Let's get ready for a full month of training in image analysis in @pasteur.fr , this summer! Are you interested in learning how to do bioimage analysis? For light microscopy? for cryo-EM? And for cellular cryo-EM? Stay tuned, Pasteur offers access to THREE courses, this June. 👇🎓
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Nicolas Mouquet @nmouquet.bsky.social · 09/03/2026
‪ 🌳 Do you want to contribute to research on how humans perceive forests? Take this quick, anonymous 10-min survey 🌲 👉 www.biodiful.org#/forest This will help us explore how people experience forest biodiversity! Please share on 🦋 & tag @biodiful.bsky.social to reach more participants 🙏💚 🌐🌍🦤🦑🪴🍁🧪
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Nicolas Chiaruttini @nkiaru.bsky.social · 02/03/2026
Appose processing hackathon with @jytinevez.bsky.social, @ctrue.bsky.social, @gaellel.bsky.social, @strigaud.bsky.social, Carlos and Thomas . Simple POC with Java calling python through Appose to flip blocks. Promising!
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Jean-Yves Tinevez @jytinevez.bsky.social · 09/02/2026
New preprint alert! We developed an automated framework to optimize tracking pipelines for bacteria, along with a nice integration of tools for bacteria imaging, in the recently released TrackMate 8 (Fiji plugin). www.biorxiv.org/content/10.6... 👇🧵
biorxiv.org
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Denis Wirtz @deniswirtz.bsky.social · 12/01/2026
3D assessments are necessary to determine the true, spatially resolved composition of tissues. Standard 2D won't do. Use CODA to switch from 2D to 3D spatial omics. More here: www.sciencedirect.com/science/arti...
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