iiinova — where your digital self keeps evolving

Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 06/10/2026

Welcome Melina Thetiot, new member of the lab @ijmonod.bsky.social, assistant professor in Neurobiology at @upcite.bsky.social. Melina is coming from our colleagues' lab @zenlabpasteur.bsky.social. She will investigate the role of the nervous system in #Platynereis regeneration !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 06/10/2026

Happy to share our review on ROS evolution, regeneration and therapeutics, published in Cell Mol Life Sciences. Led by our former PhD student Aurore Vullien, co-supervised with @rottingerlab.bsky.social in collab. with @christinerampon.bsky.social and J. John & E. Amaya. doi.org/10.1007/s000...

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 21/09/2026

Fantastic 1st day of the « cell plasticity in dvpmt and diseases » meeting in Paris. Looking forward to the regeneration session tomorrow - with @jesslamae.bsky.social .

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 19/09/2026

Remi - PhD student - had the chance to participate to the first Spatial-Cell-ID Summer School (SCID 2026) « Spatial OMICs to uncover cell identity during developmental processes » in Aussois. Many exciting experiments ahead with @zaycha.bsky.social !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 15/06/2026

From rainy Glasgow to sunny Banyuls. Back at the marine station for #EMBRC 2026 general assembly and to Give a seminar ar @biom-banyuls.bsky.social. Thanks @cnidevo.bsky.social for the invitation !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 14/06/2026

Bye-bye Glasgow and #eed2026 ! I had the pleasure to present our last story in the Evo-Devo of Complex Life Histories: Agametic Development, Regeneration and Clonality symposium! Thank you @cnidevo.bsky.social ans Stefano for the invitation and to the local organizers @chemamd.bsky.social and co !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 09/06/2026

#eed2026 is starting ! More than 650 attendees for this Glasgow edition !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 09/06/2026

2nd day of our Platynereis and other annelids satellite meeting at #eed2026 in Glasgow

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 28/05/2026

Super escale game scientifique organisé par @upcite.bsky.social « l’ère de rien » !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 28/05/2026

Welcome Lula new students in the lab working with Remi and Zoé !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 28/05/2026

Back from Roscoff after a wonderful week at the developmental biology Jacques Monod Conference. Thanks to @bardinlab.bsky.social and @lionlchristiaen.bsky.social for organising this great meeting. And Roscoff was charming as always …

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 12/05/2026

Super GDR stem cells meeting at Pasteur last week, where Zoé and Remi had the chance to present their work !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 12/05/2026

Welcome Chloe and Martin, new students in the Lab !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 20/03/2026

Happy to be part of the « expert » jury for #unistem day @pasteur.fr . Many posters on animal regeneration !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 06/03/2026

We are looking for a Master 2 internship for January 2027 to work on Platynereis regeneration and success. Do not hesitate to contact us if you are interested !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 06/03/2026

Ouverture d'un poste de MCU en Neurobiologie et Neurosciences à UPCité, rejoignez nous pour étudier le rôle du système nerveux dans la régénération animale.

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 20/12/2025

Deux soutenances d’HDR au sein de l’équipe en 1 semaine ! Felicitations à Pierre @ssaft.com et Gab pour leurs belles prestations de fin d’année. @upcite.bsky.social @ijmonod.bsky.social

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 10/10/2025

Congrats Dr Zoe Atzin Velasquillo Ramirez, we are all very proud of you !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 01/10/2025

Today is a « first day » for many of us ! 1st day as a PhD student and monitor for Remi and 1st day as research director for Eve

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 10/07/2025

2nd place for our revisited poster of JAWS at the @ijmonod.bsky.social day. Congrats Zoé and @ssaft.com !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 10/07/2025

Congrats Remi for your PhD fellowship from @biospc.bsky.social ! We are so happy to have you on board @ijmonod.bsky.social to work on Platynereis regeneration.

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 12/06/2025

2025 Lab pictures with new M1 students Leo and Minh.

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 28/05/2025

It’s always a pleasure to go to @imev-mer.fr @biodev-vlfr.bsky.social ! Thank you Stefano, Alex and Marie for the opportunity to be part of the PhD jury and learn so many interesting science of Botryllus and salps !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 12/05/2025

It was a great pleasure to share our work on annelid regeneration at @msarscentre.bsky.social last week and to discuss with the great students and PI. The visits of animal facilities was a blast ! Thank you @lionlchristiaen.bsky.social for the invitation at #sunnyBergen !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 24/03/2025

In this study, led by former PhD student Loïc Bideau, we showed that Notch regulates neural progenitor specification and is important for axon guidance by elegantly combining HCR expression, functional assays, differential RNA-seq and fine dissection of the neurogenic cascade.

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 13/03/2025

Zoé is on stage for presenting hier PhD work at the JAP 2025 in Paris

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 05/03/2025

You are interested in a Master 2 internship in a dynamic and supportive team working on animal #regeneration in Paris at @ijmonod.bsky.social ? Take a look at our project proposal and contact us! @stemdevevo.bsky.social stemdevevo.wordpress.com/wp-content/u...

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 26/02/2025

Felicitations à @zoevel.bsky.social pour son prix d’excellence jeune chercheur de la fondation des Treilles ! Ce prix récompense la qualité de son travail de thèse sur le succès de la régénération chez l’annelide Platynereis !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 12/01/2025

Finally, we showed that ROS inhibition differentially affects tissue identity in Platynereis, suggesting a signal between the ROS-producing ectodermal cells and the ROS-responding meso-endodermal cells that proliferate.

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 12/01/2025

On the other hand, in Nematostella ROS production is required for a second episode of injury-induced apoptosis and for the sustainment of proliferation in later stages, particularly in the body wall epithelia at the amputation site.

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 12/01/2025

ROS inhibition in Platynereis does not affect injury-induced apoptosis but reduces cell proliferation in the regenerating structures at all stages, more strikingly in the meso-endoderm.

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 12/01/2025

ROS are required for regeneration in both models, with inhibition of ROS production blocking the process at early stages.

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 12/01/2025

We investigated more specifically the role of ROS during posterior regeneration in Platynereis (annelid) and oral regeneration in Nematostella (cnidarian). We showed that ROS are produced in both models, but their dynamics rely on distinct enzymatic activities.

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 12/01/2025

But the precise composition of the redox arsenal can vary drastically from species to species, suggesting that evolutionary constraints apply to ROS metabolism functions rather than precise actors.

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 12/01/2025

Thanks to a detailed inventory of the main ROS metabolism actors across metazoans, we established that the vast majority of metazoans possess a core redox kit allowing for the production and detoxification of ROS, and overall regulation of ROS levels.

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 04/12/2024

Début du congrès @cnrs sur la diversité des mécanismes biologiques à Paris

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 29/11/2024

Congrats Zoe for your poster prize at the Labex Who Am I final meeting !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 26/10/2024

It was a great pleasure to visit @IGDRennes for a CSI and to give a seminar. Thank you @Pol_elegans for the invitation. And to @MuscleFlyLab for the discussion!

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 15/10/2024

Zoé is on stage for a flash talk presenting her poster on #platynereis regeneration at the @IJMonod YSC scientific day !

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 09/10/2024

Beautiful weather at last for the 3rd day of the #EMBO regeneration meeting in the south of France. The right day to present our #platynereis work

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Stem Cells, Regeneration & Evolution @stemdevevo.bsky.social · 07/10/2024

On my way to the #EMBO regeneration meeting! Looking forward to see great science, friends and to present our work on #platynereis ! So far the weather for the south of France is a bit disappointing …

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