Aleksi Isomursu
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aisomursu.bsky.social
Aleksi Isomursu
@aisomursu.bsky.social
Postdoc in the @etiennemanneville.bsky.social‬ lab @pasteur.fr 🇫🇷🔬 | Previously @ivaskalab.bsky.social‬ 🇫🇮 | Cell migration, mechanobiology, cancer
Reposted by Aleksi Isomursu
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...
September 27, 2025 at 8:48 AM
Reposted by Aleksi Isomursu
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
Reposted by Aleksi Isomursu
OMG, this is such a cool paper from Patrick Caswell's lab. They express Rab25-mCherry-GFP-nanobody in cells, microinject GFP-magnetic particles, then use a magnet to pull Rab25 to the plasma membrane to show that it can trigger actin protrusions! I want this system.
www.science.org/doi/10.1126/...
Live-cell magnetic manipulation of recycling endosomes reveals their direct effect on actin protrusions to promote invasive migration
Repositioning of Rab25 vesicles containing formin and integrin cargos to the cell periphery promotes protrusion formation.
www.science.org
July 8, 2025 at 9:21 PM
Reposted by Aleksi Isomursu
Our paper describing the creation of a nationwide core facility for bioimage analysis if out in @plos Computational Biology!
🎉✌️

journals.plos.org/ploscompbiol...

So happy about this paper and how the work turned out.
A small thread 👇

#bioimageanalysis #corefacility
F-BIAS: Towards a distributed national core facility for bioimage analysis †
Author summary We describe our experience in creating a nationwide core facility offering services in bioimage analysis. This virtual facility federates existing resources scattered across the territo...
journals.plos.org
June 11, 2025 at 8:29 AM
Reposted by Aleksi Isomursu
@gounismichalis.bsky.social‬ et al. show that cells that seed early lung #metastasis in #BreastCancer have altered #metabolism. These metabolic alterations lead them to release extracellular vesicles which engender a microenvironment conducive to invasive growth. rupress.org/jcb/article/...
June 9, 2025 at 4:07 PM
Reposted by Aleksi Isomursu
Check out our new work @natcomms.nature.com! @mayorlab.bsky.social discovered that cells perform durotaxis even without focal adhesions. How? Well, we found that they actually follow friction gradients — a new mode of directed cell migration that we call frictiotaxis!

www.nature.com/articles/s41...
Frictiotaxis underlies focal adhesion-independent durotaxis - Nature Communications
Cells typically migrate toward stiffer substrates via durotaxis, relying on focal adhesions. Here, the authors show that confined cells can migrate up friction gradients without focal adhesions, revea...
www.nature.com
April 24, 2025 at 11:03 AM
Reposted by Aleksi Isomursu
In their Review, Laura Faure, Valeria Venturini @valeriaventurini.bsky.social and Pere Roca-Cusachs discuss the biological contexts of cell mechanical compression, the associated mechanisms and the experimental systems engineered to compress cells in vitro.
journals.biologists.com/jcs/article/...
March 28, 2025 at 11:46 AM
Reposted by Aleksi Isomursu
Looking for #MaterialStiffness of #BasementMembrane across tissues?
Excellent literature resource here😆👇

The basement membrane as a structured surface – role in vascular health and disease

@claireleclech.bsky.social @jcellsci.bsky.social 2020
journals.biologists.com/jcs/article/...
March 7, 2025 at 12:51 PM
Reposted by Aleksi Isomursu
New paper from the lab🎈. Introducing Micro Immune Response On-chip (MIRO), a device that replicates tumors and their microenvironment to better understand responses to immunotherapies (cyan=immune cells, red=cancer, green=CAFs).
www.nature.com/articles/s41...
@ibecbarcelona.eu
February 7, 2025 at 11:46 AM
Reposted by Aleksi Isomursu
Villeneuve, C., Hashmi, A., ...,Manning, M. L., & Wickström, S. A. (2024). Mechanical forces across compartments coordinate cell shape and fate transitions to generate tissue architecture. Nature cell biology, 26(2), 207–218. #EpithelialMechanics
https://www.nature.com/articles/s41556-023-01332-4
December 24, 2024 at 8:00 AM
Reposted by Aleksi Isomursu
How is metabolism interconnected with cellular dynamics? We are @emaniou.bsky.social and @hpscenthusiast.bsky.social and through an energy inexpensive process, we will highlight advances in mechano-metabolism and related fields. @epimechfc.bsky.social
December 14, 2024 at 2:17 PM
Reposted by Aleksi Isomursu
For the dev bio crowd : there is a call for junior group leader at Institut Pasteur in Paris and one of the axis covered is related to development. Come and join us in this exciting place and become one of our colleague @devstempasteur.bsky.social
Please RT !!
research.pasteur.fr/fr/call/call...
Call for applications 2025 – Creation of new research groups at the Institut Pasteur | Research - Institut Pasteur
research.pasteur.fr
December 8, 2024 at 9:54 PM