Pierre Osteil
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pierreosteil.bsky.social
Pierre Osteil
@pierreosteil.bsky.social
Developmental & Stem Cell biologist working on mouse early embryo, in the Chazaud lab in Clermont-Ferrand, France. Teaching #devbiol & #bioinformatics at UCA. CV: 🇨🇵>🇦🇺>🇨🇭>🇨🇵
Discover the DICE team: https://www.igred.fr/en/team/dice/
Also, a 2min Internet check. "no involvements that could be interpreted as influencing the integrity of this work" 👇👇
July 28, 2025 at 5:20 AM
Could you beat this? 2 days to write a paper, for only 3000$ and "plenty of sunshine"... 🧪 😜
June 13, 2025 at 12:49 PM
This project demonstrates that MIXL1 is directly linked to definitive endoderm generation, similar to its role in mice, and that its expression level could be predictive for cell lines amenable to functional tissue generation, which is a prerequisite for stem cell therapy. (6/7)
April 29, 2025 at 2:14 PM
These lines were subjected to differentiation on micropatterns. We found that increasing MIXL1 expression levels led to the production of more definitive endoderm cells. (5/7)
April 29, 2025 at 2:14 PM
The second part consisted of a functional study of MIXL1. We engineered mutant hiPSCs using CRISPR-Cas9 and created an inducible line using CRISPRa methods. (4/7)
April 29, 2025 at 2:14 PM
Then, by combining scRNA-seq data, we validated our findings on 11 hiPSC lines and extended them to a larger cohort of 125 cell lines from @steglelab.bsky.social (3/7)

www.nature.com/articles/s41...
April 29, 2025 at 2:14 PM
First, we confirmed that isogenic hiPSC lines have different endoderm propensities, which can be correlated with the level of MIXL1 expression during the first 24 hours of differentiation. (2/7)
April 29, 2025 at 2:14 PM
🚨🚨 Paper alert : doi.org/10.1016/j.st...

Check out the work we did with Sarah Withey, Nicole Santucci, @nazsalehin.bsky.social , Bella Li and others in Patrick Tam's

We demonstrated the functional role of MIXL1 in human iPSCs, with some beautiful images. 🔬❤️ (1/7)

#stemcell #devbio #hiPSC
April 29, 2025 at 2:14 PM
« Ici, en France, la recherche est une priorité, l’innovation une culture, la science un horizon sans limite »

Par contre tu cherches aussi l'argent. 💰 🤦
👉 www.lemonde.fr/politique/ar...

#ESR #Recherche #ChooseFrance
April 27, 2025 at 12:21 PM
This is so far the best imaging of a E4.5 mouse embryo. From our M2 student Théo Boyer!

Cleared with RapiClear (thks @alexandremayran.bsky.social). SOX2 is cyan, GATA6 is magenta, DAPI in gray. Playing with Napari. #fluorescentFriday #teamDICE #Development
March 7, 2025 at 6:46 AM
Check out this new paper from @thomasgregor.bsky.social 's lab on hydrogel embedding of mouse gastruloids to control gene expression and patterning.
January 30, 2025 at 8:05 AM
It fell as the loose eppendorf stuck in the -80 snow when you opened the door.
January 15, 2025 at 6:34 AM
December 18, 2024 at 6:47 AM
One of my students wrote "sorry for my handwriting".

Should I grant him extra points? Also, it was far from being the worst handwriting. #teaching #students.
December 15, 2024 at 3:34 PM
New type of oganoid: "Emojioid". #FluorescentTuesday
🧪🔬👨‍🔬
December 10, 2024 at 1:06 PM