Lightnews — Scholar-powered news

Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 7d

Great news! Congratulations !!!

Reposted by Bertrand Benazeraf

David Monniaux @monniauxd.bsky.social · 24d

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.

3 40 29

Reposted by Bertrand Benazeraf

Ina Sonnen @sonnenlab.bsky.social · 29d

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...

3 20 80

Reposted by Bertrand Benazeraf

Institut Jacques Monod @ijmonod.bsky.social · 29d

#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...

1 1

Reposted by Bertrand Benazeraf

Melanie D. White @melaniedwhite.bsky.social · Aug 29

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.

1 21 130

Reposted by Bertrand Benazeraf

gserranonajera.bsky.social @gserranonajera.bsky.social · Aug 7

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

1 15 53

Reposted by Bertrand Benazeraf

Jonas Neipel @neipel.bsky.social · Jul 20

(1/10)
I am excited to finally share our work on avian left/right symmetry breaking with you. We reveal a tissue-scale active torque dipole generated at the Hensen’s node, thanks to crazy experiments by Julia @juliapfanzelter.bsky.social and some analysis by me.
doi.org/10.1101/2025...

An active torque dipole across tissue layers drives avian left-right symmetry breaking

Unlike in mice, frogs, and fish, left-right (L/R) body axis formation in avian embryos does not arise from the chiral beat of cilia. Instead, a counter-clockwise tissue rotation around Hensen′ node, t...

doi.org

1 20 46

Reposted by Bertrand Benazeraf

Julia Pfanzelter @juliapfanzelter.bsky.social · Jul 21

What started with many quail eggs and put me on stage in a chicken suit has now resulted in a preprint www.biorxiv.org/content/10.1...
Microsurgery with human eye-lashes, laser ablations, great analysis and insightful theory from @neipel.bsky.social told us more about avian L/R symmetry breaking.

1 6 21

Reposted by Bertrand Benazeraf

Alfonso Martinez Arias @amartinezarias.bsky.social · Jul 15

Two new preprints from the @arjunraj.bsky.social‬ on #gastruloids. Both excellent. Exploring the relationship between macroscopic reproducibility v microscopic heterogeneity. Stunning experiments and much to think about
biorxiv.org/content/earl...
biorxiv.org/content/earl...

1 16 43

Reposted by Bertrand Benazeraf

John Wallingford @jbwallingford.bsky.social · Jul 11

Birth defects kill twice as many children as cancer. Animal model are crucial; no stem-cell or computer models can yet recapitulate the embryo's complexity. If you support birth defects research tell NIH that animal models are important! Click & scroll below to comment.

tinyurl.com/mr3he6bx

FDA-NIH Workshop: Reducing Animal Testing

The FDA is hosting a workshop on reducing animal testing. The workshop is open to current FDA and NIH employees.

tinyurl.com

15 25

Reposted by Bertrand Benazeraf

ruthwilliamslab.bsky.social @ruthwilliamslab.bsky.social · Jul 11

12th Avian Model Systems Meeting bit.ly/3ZBw2qS @stowersinstitute.bsky.social. We will be joined by Marianne Bronner, Olivier Pourquié, Megan Davey, Julie Elie, @jeromegros.bsky.social, Carols Lois, Peter Lwigale, Alan Rodrigues, Marcos Simoes-Costa, @melaniedwhite.bsky.social and YOU!

Research Organisms in Flight: Revealing the Roots of Vertebrate Form…

Organized by Tatjana Sauka-Spengler, Ph.D., and Ruth Williams, Ph.D.

bit.ly

5 7

Reposted by Bertrand Benazeraf

Audrey Dussutour @docteur-drey.bsky.social · Jul 1

🇫🇷 Nous recrutons un IE en biologie cellulaire, sur un modèle d'étude fascinant : le blob ! N'hésitez pas à partager !
🇬🇧 We are recruiting a research engineer in cell biology, working on an exciting model: the blob! Feel free to share!
👉 emploi.cnrs.fr/Offres/CDD/U...

Portail Emploi CNRS - Offre d'emploi - Ingénieur d'étude (H/F) en biologie cellulaire, modèle d'étude : Myxomycètes (blob)

emploi.cnrs.fr

4 5

Bertrand Benazeraf @bertrandbenazeraf.bsky.social · Jun 29

Great book !

1

Bertrand Benazeraf @bertrandbenazeraf.bsky.social · Jun 29

Congratulations! I'm really looking forward to seeing the work that will come out of your lab.

1 1

Bertrand Benazeraf @bertrandbenazeraf.bsky.social · Jun 27

I would like to be added , thanks !

1 1

Bertrand Benazeraf @bertrandbenazeraf.bsky.social · Jun 27

I would like to be added !! Thanks

1 1

Reposted by Bertrand Benazeraf

Denis Krndija @deniskrndija.bsky.social · Jun 10

Enjoying great science and stunning alpine views at the GRC on Cell Contact & Adhesion in Les Diablerets 🇨🇭⛰️ Proud of our PhD students Dhriti and Vishnu for their terrific work - posters and talks full of exciting insights! #CellContactAndAdhesionGRC #CellBiology #PhDLife #LesDiablerets

2 20

Bertrand Benazeraf @bertrandbenazeraf.bsky.social · May 22

Great use of the transgenic quail model to answer very basic and important question in developmental biology !

Aurélien Villedieu @aurelienvilledieu.bsky.social · May 19

🚨New preprint
Glad to share my postdoc work on the role of the hypoblast in primitive streak induction! Discover how live imaging observations led us to revisit the molecular mechanisms governing embryonic axis induction
Thanks to @jeromegros.bsky.social and all co-authors!
doi.org/10.1101/2025...

Live imaging and functional characterization of the avian hypoblast redefine the mechanisms of primitive streak induction

In birds and mammals, the formation of the primitive streak, the hallmark of the primary axis and site of gastrulation, is thought to occur when an anterior displacement of the hypoblast (visceral end...

doi.org

5

Reposted by Bertrand Benazeraf

Aurélien Villedieu @aurelienvilledieu.bsky.social · May 19

🚨New preprint
Glad to share my postdoc work on the role of the hypoblast in primitive streak induction! Discover how live imaging observations led us to revisit the molecular mechanisms governing embryonic axis induction
Thanks to @jeromegros.bsky.social and all co-authors!
doi.org/10.1101/2025...

Live imaging and functional characterization of the avian hypoblast redefine the mechanisms of primitive streak induction

In birds and mammals, the formation of the primitive streak, the hallmark of the primary axis and site of gastrulation, is thought to occur when an anterior displacement of the hypoblast (visceral end...

doi.org

2 12 30

Bertrand Benazeraf @bertrandbenazeraf.bsky.social · May 12

Great work from Arthur Michaut again ! Very cool study on biophysical properties of the very young avian embryo. Congrats to Arthur, and to the teams of Francis and Jérôme !

Arthur Michaut 🔬🐣 @amichaut.bsky.social · May 12

🚨📣 New preprint alert!
Excited to share my new postdoc work on direct force and mechanical properties measurements in live embryos!
A great team effort with A. Chamolly (theory), under the supervision of F. Corson and @jeromegros.bsky.social
📄 www.biorxiv.org/content/10.1...
#devbio #mechanics

Direct measurements of active forces and material properties unveil the active mechanics of early embryogenesis

Despite progress in probing tissue mechanics, direct long-term measurements in live embryonic epithelia are lacking. This limits our understanding of amniote embryonic morphogenesis, which takes place...

www.biorxiv.org

1 1 6

Reposted by Bertrand Benazeraf

Alexandre Dumoulin @axonsalex.bsky.social · Apr 30

This time-lapse captures 17 hours of axonal growth from a chicken dorsal root ganglion explant, visualized through the actin cytoskeleton using live confocal imaging.
I just submitted this video to the Nikon Small World in Motion competition. Today is the last day to upload yours! 😉
🧪

68 230 1.4K

Reposted by Bertrand Benazeraf

Institut Jacques Monod @ijmonod.bsky.social · Apr 28

#JobOffer

💼 Ingénieur d’étude (H/F) en cellules souches et biologie cellulaire
📍 @spinalorga.bsky.social Lab
📅 1e juillet 2025
🔗 emploi.cnrs.fr/Offres/CDD/U...

Candidatez avant le 15 mai 2025

7 4

Bertrand Benazeraf @bertrandbenazeraf.bsky.social · Apr 25

Thank you, and congrats on this fascinating preprint! Tissue fluidity and cell sorting are such fundamental and captivating processes!

1

Bertrand Benazeraf @bertrandbenazeraf.bsky.social · Apr 10

Congratulations !

1

Reposted by Bertrand Benazeraf

Lakshmi Balasubramaniam @lakshmib02.bsky.social · Apr 10

We are excited to share our recent preprint on how tissue spreading guides extracellular matrix changes during early morphogenesis @gurdoninstitute.bsky.social

bioRxiv Developmental Biology @biorxiv-devbio.bsky.social · Apr 8

Tissue spreading couples gastrulation through extracellular matrix remodelling in early avian embryos https://www.biorxiv.org/content/10.1101/2025.04.06.647388v1

5 17 38