Raimon Sunyer
@raimonsunyer.bsky.social
Associate professor at @unibarcelona.bsky.social • Previous RyC • NIH & @ibecbarcelona.bsky.social alumni • Interested in #CellMigration & #mechanobiology
Reposted by Raimon Sunyer
Ten years ago, I saw a paper with some data that has bothered me ever since: B cells in a 0-100 ng/mL gradient of CCL19 are attracted to CCL19, but B cells in 0-500 ng/mL are repelled (see movie, ignoring the big clusters for now!). Why? Here's our model! doi.org/10.1101/2025...
October 30, 2025 at 5:32 PM
Ten years ago, I saw a paper with some data that has bothered me ever since: B cells in a 0-100 ng/mL gradient of CCL19 are attracted to CCL19, but B cells in 0-500 ng/mL are repelled (see movie, ignoring the big clusters for now!). Why? Here's our model! doi.org/10.1101/2025...
Job Alert 📢
The group of Dr. Jordi Alcaraz (@ub.edu) offers a funded Postdoc (3y) or PhD (4y) to study immunosuppression in lung cancer.
In collaboration with @hospitalclinic.bsky.social's Immunology Unit.
📩 Apply: [email protected]
🕒 Start: 1st half of 2026
ℹ️ More info: Attached image
The group of Dr. Jordi Alcaraz (@ub.edu) offers a funded Postdoc (3y) or PhD (4y) to study immunosuppression in lung cancer.
In collaboration with @hospitalclinic.bsky.social's Immunology Unit.
📩 Apply: [email protected]
🕒 Start: 1st half of 2026
ℹ️ More info: Attached image
October 31, 2025 at 12:46 PM
Job Alert 📢
The group of Dr. Jordi Alcaraz (@ub.edu) offers a funded Postdoc (3y) or PhD (4y) to study immunosuppression in lung cancer.
In collaboration with @hospitalclinic.bsky.social's Immunology Unit.
📩 Apply: [email protected]
🕒 Start: 1st half of 2026
ℹ️ More info: Attached image
The group of Dr. Jordi Alcaraz (@ub.edu) offers a funded Postdoc (3y) or PhD (4y) to study immunosuppression in lung cancer.
In collaboration with @hospitalclinic.bsky.social's Immunology Unit.
📩 Apply: [email protected]
🕒 Start: 1st half of 2026
ℹ️ More info: Attached image
Reposted by Raimon Sunyer
Exciting News! 🥳 Our Epithelial Mechanics Fan Club website is now live! 🎉
👉 epithelialmechanics.github.io
Discover our #EpithelialMechanics threads and get to know our amazing delegates behind them.
Would you like to share your story? Please DM us!
👉 epithelialmechanics.github.io
Discover our #EpithelialMechanics threads and get to know our amazing delegates behind them.
Would you like to share your story? Please DM us!
🎉🎉 We finally have a website! 🎉🎉
Did you miss a thread?
Want to know who our delegates are?
Do you want to join our big club?
Check it out:
epithelialmechanics.github.io
Huge thanks to all thread-contributors and to you for following us!
Did you miss a thread?
Want to know who our delegates are?
Do you want to join our big club?
Check it out:
epithelialmechanics.github.io
Huge thanks to all thread-contributors and to you for following us!
Epithelial Mechanics Fan Club
epithelialmechanics.github.io
October 23, 2025 at 7:21 AM
Exciting News! 🥳 Our Epithelial Mechanics Fan Club website is now live! 🎉
👉 epithelialmechanics.github.io
Discover our #EpithelialMechanics threads and get to know our amazing delegates behind them.
Would you like to share your story? Please DM us!
👉 epithelialmechanics.github.io
Discover our #EpithelialMechanics threads and get to know our amazing delegates behind them.
Would you like to share your story? Please DM us!
Reposted by Raimon Sunyer
Join the coolest club on the internet!
#EpithelialMechanics
#EpithelialMechanics
🎉🎉 We finally have a website! 🎉🎉
Did you miss a thread?
Want to know who our delegates are?
Do you want to join our big club?
Check it out:
epithelialmechanics.github.io
Huge thanks to all thread-contributors and to you for following us!
Did you miss a thread?
Want to know who our delegates are?
Do you want to join our big club?
Check it out:
epithelialmechanics.github.io
Huge thanks to all thread-contributors and to you for following us!
Epithelial Mechanics Fan Club
epithelialmechanics.github.io
October 23, 2025 at 3:11 PM
Join the coolest club on the internet!
#EpithelialMechanics
#EpithelialMechanics
Reposted by Raimon Sunyer
1/ 🎉Excited to share our new preprint @vignjeviclab.bsky.social @davidbrueckner.bsky.social :
"Self-organization of tumor heterogeneity and plasticity"
biorxiv.org/content/10.1...
Tumor heterogeneity and plasticity drive metastasis and relapse. How is tumor patterning coordinated?
A thread👇
"Self-organization of tumor heterogeneity and plasticity"
biorxiv.org/content/10.1...
Tumor heterogeneity and plasticity drive metastasis and relapse. How is tumor patterning coordinated?
A thread👇
October 16, 2025 at 9:55 PM
1/ 🎉Excited to share our new preprint @vignjeviclab.bsky.social @davidbrueckner.bsky.social :
"Self-organization of tumor heterogeneity and plasticity"
biorxiv.org/content/10.1...
Tumor heterogeneity and plasticity drive metastasis and relapse. How is tumor patterning coordinated?
A thread👇
"Self-organization of tumor heterogeneity and plasticity"
biorxiv.org/content/10.1...
Tumor heterogeneity and plasticity drive metastasis and relapse. How is tumor patterning coordinated?
A thread👇
Reposted by Raimon Sunyer
We hire!
The CytoMorpho Lab is looking for an engineer with a background in cell and molecular biology to join our team in Paris. This is a 18-month contract position, but we're open to exploring long-term opportunities.
More details here:
cytomorpholab.com/index.php/jo...
The CytoMorpho Lab is looking for an engineer with a background in cell and molecular biology to join our team in Paris. This is a 18-month contract position, but we're open to exploring long-term opportunities.
More details here:
cytomorpholab.com/index.php/jo...
October 14, 2025 at 1:50 PM
We hire!
The CytoMorpho Lab is looking for an engineer with a background in cell and molecular biology to join our team in Paris. This is a 18-month contract position, but we're open to exploring long-term opportunities.
More details here:
cytomorpholab.com/index.php/jo...
The CytoMorpho Lab is looking for an engineer with a background in cell and molecular biology to join our team in Paris. This is a 18-month contract position, but we're open to exploring long-term opportunities.
More details here:
cytomorpholab.com/index.php/jo...
Reposted by Raimon Sunyer
🚨JOB ALERT
Dr. Buceta at @i2sysbio.es welcome applications for 36-month postdocs on:
👉 Mechanical markers of tissue dysfunction due to ageing – digital twins & machine learning
Details here: fgcsic.es/convocatoria...
📩 Contact [email protected] to shape your proposal!
@epimechfc.bsky.social
Dr. Buceta at @i2sysbio.es welcome applications for 36-month postdocs on:
👉 Mechanical markers of tissue dysfunction due to ageing – digital twins & machine learning
Details here: fgcsic.es/convocatoria...
📩 Contact [email protected] to shape your proposal!
@epimechfc.bsky.social
ComFuturo Fourth Edition: ComFuturo iAGE Call - FGCSIC
The Fundación General CSIC (FGCSIC) launches the fourth edition of its ComFuturo programme: ComFuturo iAGE, a postdoctoral initiative co-financed by the Marie Skłodowska-Curie Actions COFUND scheme of...
fgcsic.es
October 13, 2025 at 1:04 PM
🚨JOB ALERT
Dr. Buceta at @i2sysbio.es welcome applications for 36-month postdocs on:
👉 Mechanical markers of tissue dysfunction due to ageing – digital twins & machine learning
Details here: fgcsic.es/convocatoria...
📩 Contact [email protected] to shape your proposal!
@epimechfc.bsky.social
Dr. Buceta at @i2sysbio.es welcome applications for 36-month postdocs on:
👉 Mechanical markers of tissue dysfunction due to ageing – digital twins & machine learning
Details here: fgcsic.es/convocatoria...
📩 Contact [email protected] to shape your proposal!
@epimechfc.bsky.social
Reposted by Raimon Sunyer
How do cells navigate up gradients of adhesive proteins?
🤔
Termed "Haptotaxis", this effect is ubiquitous in cell migration, but it's mechanism was poorly understood
We show that passive friction directs cells & explains complex trajectories on gradients
👉 www.nature.com/articles/s41...
🤔
Termed "Haptotaxis", this effect is ubiquitous in cell migration, but it's mechanism was poorly understood
We show that passive friction directs cells & explains complex trajectories on gradients
👉 www.nature.com/articles/s41...
September 27, 2025 at 8:48 AM
How do cells navigate up gradients of adhesive proteins?
🤔
Termed "Haptotaxis", this effect is ubiquitous in cell migration, but it's mechanism was poorly understood
We show that passive friction directs cells & explains complex trajectories on gradients
👉 www.nature.com/articles/s41...
🤔
Termed "Haptotaxis", this effect is ubiquitous in cell migration, but it's mechanism was poorly understood
We show that passive friction directs cells & explains complex trajectories on gradients
👉 www.nature.com/articles/s41...
Reposted by Raimon Sunyer
September 28, 2025 at 8:05 AM
Reposted by Raimon Sunyer
Happy to share that my PhD has finally taken the shape of a paper! ✨
Huge thanks to all authors, especially @davidbrueckner.bsky.social & @ehannezo.bsky.social for leading the modeling and @raimonsunyer.bsky.social & @xaviertrepat.bsky.social for their invaluable supervision.
🧵👇
Huge thanks to all authors, especially @davidbrueckner.bsky.social & @ehannezo.bsky.social for leading the modeling and @raimonsunyer.bsky.social & @xaviertrepat.bsky.social for their invaluable supervision.
🧵👇
How do cells navigate up gradients of adhesive proteins?
🤔
Termed "Haptotaxis", this effect is ubiquitous in cell migration, but it's mechanism was poorly understood
We show that passive friction directs cells & explains complex trajectories on gradients
👉 www.nature.com/articles/s41...
🤔
Termed "Haptotaxis", this effect is ubiquitous in cell migration, but it's mechanism was poorly understood
We show that passive friction directs cells & explains complex trajectories on gradients
👉 www.nature.com/articles/s41...
September 27, 2025 at 12:01 PM
Happy to share that my PhD has finally taken the shape of a paper! ✨
Huge thanks to all authors, especially @davidbrueckner.bsky.social & @ehannezo.bsky.social for leading the modeling and @raimonsunyer.bsky.social & @xaviertrepat.bsky.social for their invaluable supervision.
🧵👇
Huge thanks to all authors, especially @davidbrueckner.bsky.social & @ehannezo.bsky.social for leading the modeling and @raimonsunyer.bsky.social & @xaviertrepat.bsky.social for their invaluable supervision.
🧵👇
Reposted by Raimon Sunyer
In this 2015 Editorial, Alan Hall and Ken Yamada discussed how science community can respond to #reproducibility concerns. rupress.org/jcb/article/...
📕 In Reproducibility and Best Practices in Cell Biology: rupress.org/jcb/collecti...
📕 In Reproducibility and Best Practices in Cell Biology: rupress.org/jcb/collecti...
September 10, 2025 at 2:05 PM
In this 2015 Editorial, Alan Hall and Ken Yamada discussed how science community can respond to #reproducibility concerns. rupress.org/jcb/article/...
📕 In Reproducibility and Best Practices in Cell Biology: rupress.org/jcb/collecti...
📕 In Reproducibility and Best Practices in Cell Biology: rupress.org/jcb/collecti...
Reposted by Raimon Sunyer
🔥 Let's warm up for the #cellmech2025 !!
Here are some fun facts about the history of the University!👇
🎉 Founded in 1425, KU Leuven is turning 600! That’s older than the printing press. Europe's oldest Catholic university still going strong.
Here are some fun facts about the history of the University!👇
🎉 Founded in 1425, KU Leuven is turning 600! That’s older than the printing press. Europe's oldest Catholic university still going strong.
September 4, 2025 at 9:30 AM
🔥 Let's warm up for the #cellmech2025 !!
Here are some fun facts about the history of the University!👇
🎉 Founded in 1425, KU Leuven is turning 600! That’s older than the printing press. Europe's oldest Catholic university still going strong.
Here are some fun facts about the history of the University!👇
🎉 Founded in 1425, KU Leuven is turning 600! That’s older than the printing press. Europe's oldest Catholic university still going strong.
Turns out my university is 575 years old today.
Older than coffee and chocolate in Europe.
Gaudeamus Igitur 🎉
Older than coffee and chocolate in Europe.
Gaudeamus Igitur 🎉
#UB575 | 🎂 El 3 de setembre de 1450, un privilegi reial d’Alfons el Magnànim va permetre fundar l’Estudi General de Barcelona, l’origen de la #UniBarcelona. Justament avui, doncs, la nostra institució fa 575 anys! 🎉
🎥 Mira l’espot amb què iniciem la commemoració d’aquest aniversari tan emblemàtic!
🎥 Mira l’espot amb què iniciem la commemoració d’aquest aniversari tan emblemàtic!
Una història de futur
YouTube video by Universitat de Barcelona
youtu.be
September 3, 2025 at 4:36 PM
Turns out my university is 575 years old today.
Older than coffee and chocolate in Europe.
Gaudeamus Igitur 🎉
Older than coffee and chocolate in Europe.
Gaudeamus Igitur 🎉
Reposted by Raimon Sunyer
Collective cell motion has many forms, but rotation is the coolest of them all.
I'm @onenimesa.bsky.social , and in this short🧵, I'll highlight some instances of global tissue rotation like this one from @BauschLab
I'm @onenimesa.bsky.social , and in this short🧵, I'll highlight some instances of global tissue rotation like this one from @BauschLab
August 23, 2025 at 7:00 AM
Collective cell motion has many forms, but rotation is the coolest of them all.
I'm @onenimesa.bsky.social , and in this short🧵, I'll highlight some instances of global tissue rotation like this one from @BauschLab
I'm @onenimesa.bsky.social , and in this short🧵, I'll highlight some instances of global tissue rotation like this one from @BauschLab
Reposted by Raimon Sunyer
Now published in @natcomms.nature.com! 🥳
👉 rdcu.be/eATn3
We developed image analysis tools to capture the nematic orientation field of 3D tissue surfaces. Tested on epithelial aggregates, zebrafish hearts, myoblasts on spheres & micro-vessels, we combined soft matter physics with exp. biology.
👉 rdcu.be/eATn3
We developed image analysis tools to capture the nematic orientation field of 3D tissue surfaces. Tested on epithelial aggregates, zebrafish hearts, myoblasts on spheres & micro-vessels, we combined soft matter physics with exp. biology.
August 15, 2025 at 12:13 PM
Now published in @natcomms.nature.com! 🥳
👉 rdcu.be/eATn3
We developed image analysis tools to capture the nematic orientation field of 3D tissue surfaces. Tested on epithelial aggregates, zebrafish hearts, myoblasts on spheres & micro-vessels, we combined soft matter physics with exp. biology.
👉 rdcu.be/eATn3
We developed image analysis tools to capture the nematic orientation field of 3D tissue surfaces. Tested on epithelial aggregates, zebrafish hearts, myoblasts on spheres & micro-vessels, we combined soft matter physics with exp. biology.
Reposted by Raimon Sunyer
The appearance of large language models caused a drastic shift in the vocabulary of academic writing, according to an analysis in #ScienceAdvances of more than 15 million biomedical abstracts published from 2010 to 2024.
Learn more:
Learn more:
Delving into LLM-assisted writing in biomedical publications through excess vocabulary
Large language models (LLMs) like ChatGPT can generate and revise text with human-level performance. These models come with clear limitations, can produce inaccurate information, and reinforce existing biases.
scim.ag
August 10, 2025 at 2:07 PM
The appearance of large language models caused a drastic shift in the vocabulary of academic writing, according to an analysis in #ScienceAdvances of more than 15 million biomedical abstracts published from 2010 to 2024.
Learn more:
Learn more:
Reposted by Raimon Sunyer
Hi I’m @vpmechbio.bsky.social, intrigued by how cells regulate their shape, by means of cytoskeleton and how this influences cellular function. One way to study this mechanism is to impose cells to certain geometric shape. Allow me to welcome you to the world of micropatterning!
August 2, 2025 at 5:07 AM
Hi I’m @vpmechbio.bsky.social, intrigued by how cells regulate their shape, by means of cytoskeleton and how this influences cellular function. One way to study this mechanism is to impose cells to certain geometric shape. Allow me to welcome you to the world of micropatterning!
Reposted by Raimon Sunyer
Dreaming of a swimming pool? Bacteria are surrounded by water! Water capillary forces organize bacterial colonies into gas, nematic streams, or droplet states. New paper @natphys.nature.com led by Matt Black and Chenyi Fei, with Ned Wingreen and Josh Shaevitz!
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Capillary interactions drive the self-organization of bacterial colonies - Nature Physics
Bacteria tend to live in thin layers of water on surfaces. Now the capillary forces in these layers are shown to help organize the bacteria into dense packs.
www.nature.com
August 2, 2025 at 2:59 PM
Dreaming of a swimming pool? Bacteria are surrounded by water! Water capillary forces organize bacterial colonies into gas, nematic streams, or droplet states. New paper @natphys.nature.com led by Matt Black and Chenyi Fei, with Ned Wingreen and Josh Shaevitz!
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Raimon Sunyer
Y aquí va la distribución completa de proyectos:
- 2/3 partes de los proyectos tienen 50.000€ o menos por año. Esto no cambia.
- La financiación media por proyecto baja ligeramente (2%) respecto al PID2023.
- El porcentaje de éxito cae al 46% (49% en el PID2023).
La ciencia en España se estanca. 😕
- 2/3 partes de los proyectos tienen 50.000€ o menos por año. Esto no cambia.
- La financiación media por proyecto baja ligeramente (2%) respecto al PID2023.
- El porcentaje de éxito cae al 46% (49% en el PID2023).
La ciencia en España se estanca. 😕
July 29, 2025 at 4:22 PM
Y aquí va la distribución completa de proyectos:
- 2/3 partes de los proyectos tienen 50.000€ o menos por año. Esto no cambia.
- La financiación media por proyecto baja ligeramente (2%) respecto al PID2023.
- El porcentaje de éxito cae al 46% (49% en el PID2023).
La ciencia en España se estanca. 😕
- 2/3 partes de los proyectos tienen 50.000€ o menos por año. Esto no cambia.
- La financiación media por proyecto baja ligeramente (2%) respecto al PID2023.
- El porcentaje de éxito cae al 46% (49% en el PID2023).
La ciencia en España se estanca. 😕
Reposted by Raimon Sunyer
This is so upsetting. Outsourcing writing does not "free up time to do more science" it's just a step further toward becoming the CSO at the top of a managerial pyramid rather than being a scientist
July 9, 2025 at 9:00 PM
This is so upsetting. Outsourcing writing does not "free up time to do more science" it's just a step further toward becoming the CSO at the top of a managerial pyramid rather than being a scientist
Reposted by Raimon Sunyer
On cell extrusion in the #intestine!
After 80 years of observations, we finally took a deeper look thanks to 2D #organoids. We report:
3D #forces, #extrusion still only in the villus even without curvature, #lamellipodia generate 3D force.. and more. Have a look!
www.biorxiv.org/content/10.1...
After 80 years of observations, we finally took a deeper look thanks to 2D #organoids. We report:
3D #forces, #extrusion still only in the villus even without curvature, #lamellipodia generate 3D force.. and more. Have a look!
www.biorxiv.org/content/10.1...
July 4, 2025 at 10:21 AM
On cell extrusion in the #intestine!
After 80 years of observations, we finally took a deeper look thanks to 2D #organoids. We report:
3D #forces, #extrusion still only in the villus even without curvature, #lamellipodia generate 3D force.. and more. Have a look!
www.biorxiv.org/content/10.1...
After 80 years of observations, we finally took a deeper look thanks to 2D #organoids. We report:
3D #forces, #extrusion still only in the villus even without curvature, #lamellipodia generate 3D force.. and more. Have a look!
www.biorxiv.org/content/10.1...
Reposted by Raimon Sunyer
New paper from the lab led by @marija-matejcic.bsky.social ! Supracellular force patterns driving intestinal cell extrusion. 👇
On cell extrusion in the #intestine!
After 80 years of observations, we finally took a deeper look thanks to 2D #organoids. We report:
3D #forces, #extrusion still only in the villus even without curvature, #lamellipodia generate 3D force.. and more. Have a look!
www.biorxiv.org/content/10.1...
After 80 years of observations, we finally took a deeper look thanks to 2D #organoids. We report:
3D #forces, #extrusion still only in the villus even without curvature, #lamellipodia generate 3D force.. and more. Have a look!
www.biorxiv.org/content/10.1...
July 8, 2025 at 10:13 AM
New paper from the lab led by @marija-matejcic.bsky.social ! Supracellular force patterns driving intestinal cell extrusion. 👇
Reposted by Raimon Sunyer
Have you ever thought about inflating tissues?
Or maybe quickly deflating those inflated tissues?
New #EpithelialMechanics pre-print: doi.org/10.1101/2025...
🧵 with pressure control, multiscale buckling, controlled wrinkling
Or maybe quickly deflating those inflated tissues?
New #EpithelialMechanics pre-print: doi.org/10.1101/2025...
🧵 with pressure control, multiscale buckling, controlled wrinkling
July 3, 2025 at 2:23 PM
Have you ever thought about inflating tissues?
Or maybe quickly deflating those inflated tissues?
New #EpithelialMechanics pre-print: doi.org/10.1101/2025...
🧵 with pressure control, multiscale buckling, controlled wrinkling
Or maybe quickly deflating those inflated tissues?
New #EpithelialMechanics pre-print: doi.org/10.1101/2025...
🧵 with pressure control, multiscale buckling, controlled wrinkling
Reposted by Raimon Sunyer
🚨 Second preprint of the week!
We uncover the multiscale dynamics of active viscoelastic buckling in epithelia.
We harness these mechanical instabilities for synthetic morphogenesis.
Led by @onenimesa.bsky.social 🙌. Theory by Marino Arroyo etal. @ibecbarcelona.eu
www.biorxiv.org/content/10.1...
We uncover the multiscale dynamics of active viscoelastic buckling in epithelia.
We harness these mechanical instabilities for synthetic morphogenesis.
Led by @onenimesa.bsky.social 🙌. Theory by Marino Arroyo etal. @ibecbarcelona.eu
www.biorxiv.org/content/10.1...
July 3, 2025 at 10:25 AM
🚨 Second preprint of the week!
We uncover the multiscale dynamics of active viscoelastic buckling in epithelia.
We harness these mechanical instabilities for synthetic morphogenesis.
Led by @onenimesa.bsky.social 🙌. Theory by Marino Arroyo etal. @ibecbarcelona.eu
www.biorxiv.org/content/10.1...
We uncover the multiscale dynamics of active viscoelastic buckling in epithelia.
We harness these mechanical instabilities for synthetic morphogenesis.
Led by @onenimesa.bsky.social 🙌. Theory by Marino Arroyo etal. @ibecbarcelona.eu
www.biorxiv.org/content/10.1...
Reposted by Raimon Sunyer
How to turn a layer of fibroblasts into a tulip 🌷?
Check out our new pre-print on shape-programmable living surfaces.
Led by @pauguillamat.bsky.social
www.biorxiv.org/content/10.1...
Check out our new pre-print on shape-programmable living surfaces.
Led by @pauguillamat.bsky.social
www.biorxiv.org/content/10.1...
June 30, 2025 at 5:22 PM
How to turn a layer of fibroblasts into a tulip 🌷?
Check out our new pre-print on shape-programmable living surfaces.
Led by @pauguillamat.bsky.social
www.biorxiv.org/content/10.1...
Check out our new pre-print on shape-programmable living surfaces.
Led by @pauguillamat.bsky.social
www.biorxiv.org/content/10.1...