#CellPolarity
Our @natphys.nature.com paper is now out!
We find that defect creation & annihilation in bacteria and cells collectives spontaneously break mirror symmetry—unpredicted by active nematic theory.
#softmatter #chiral #ActiveMatter #TopologicalDefects #LivingMatter #CellPolarity

rdcu.be/yWTRbT26p9qa
September 6, 2026 at 8:06 AM
Proud to announce our epos on the multi-scale coordination of #cellpolarity and #planarcellpolarity at Featuring the formidable first authors @Soor88 and @meo0205, @TheGeneMyers and Azimzadeh labs and #planaria, of course. And 6 years of hard work :)
August 14, 2026 at 4:01 PM
Please join us for the next #DGZ #FocusWorkshop, this time on #CellPolarity and #CellMigration, Jan. 28, noon (CET) via zoom, organized by Virginie Lecaudey and Markus Engstler, featuring talks by James Cleland, Maja Matis, Anton Aebischer & Scott C. Dawson!
January 28, 2025 at 8:38 AM
On April 28, we will come together for the next #DGZ Focus Workshop on #cellpolarity & #cellmigration, organized by Virginie Lecaudey & Markus Engstler. Talks by
@srishti-rangarajan.bsky.social, @rocha-lab.bsky.social, @marta-shahbazi.bsky.social, @xaviertrepat.bsky.social. Join us!
April 8, 2026 at 10:32 AM
Please join us for the next #DGZ #FocusWorkshop, this time on #CellPolarity and #CellMigration, Jan. 28, noon (CET) via zoom, organized by Virginie Lecaudey and Markus Engstler, featuring talks by James Cleland, Maja Matis, Anton Aebischer & Scott C. Dawson!
January 20, 2025 at 11:08 AM
New paper out in EMBO Reports!
We show that Cdc42 regulation is oligomerization-dependent and that a GEF and a GAP act synergistically: Cdc24 relieves self-inhibition of oligomeric Rga2, enabling robust Cdc42 cycling.
doi.org/10.1038/s44319-026-00695-7
#cellpolarity #Cdc42 #synergy #syntheticbiology
Oligomerization-dependent and synergistic regulation of Cdc42 GTPase cycling by a GEF and a GAP - EMBO Reports
Cell polarity is a crucial biological process essential for cell division, directed growth, and motility. In Saccharomyces cerevisiae, polarity establishment centers around the small Rho-type GTPase C...
doi.org
February 22, 2026 at 6:26 PM
Defectos en la organización de la polaridad celular planar pueden participar en la patogénesis del síndrome de uña amarilla congénito y esporádico #yellownailsyndrome #cellpolarity www.acpjournals.org/doi/10.7326/...
Impaired Wnt/Planar Cell Polarity Signaling in Yellow Nail Syndrome | Annals of Internal Medicine
Background: Yellow nail syndrome (YNS) is a rare disorder characterized by a triad of yellow dystrophic nails, lymphedema, and chronic lung disease. Most patients present in adulthood, with only a few...
www.acpjournals.org
December 26, 2024 at 7:27 AM
🚀 Check out the newly improved Harnos Lab webpages!

Our research on cell polarity, development, and migration - now with a fresh look.

👉 ueb1.sci.muni.cz/ofiz/en/harn...

#CellPolarity #DevelopmentalBiology #Xenopus #WntSignaling
Harnos Lab - Section of Animal Physiology and Immunology
——– What we work withWe study early Xenopus frog embryos: a powerful model for developmental biology. 🐸 Why frogsTheir embryos are large, develop outside the body, and are ideal for live imaging and e...
ueb1.sci.muni.cz
January 6, 2026 at 11:50 AM
Introducing #ambassadorISRRWP6 B. Jazmin Reyes H. @bjazminrh.bsky.social
metabolism-dependent Arabidopsis roots dev. and dynamics of microtubules in lateral roots #cellpolarity #SOSEKI proteins #PlantGenetics #Molecular and #CellularBiology #Microscopy Currently in Persson’s lab Uni of Copenhagen
February 21, 2025 at 9:31 PM
#PDE4DIP upregulation disrupts #cytoskeleton, #CellPolarity, and mitochondrial energy metabolism via Rho-ROCK signaling, driving the progression of #LVNC and highlighting a potential therapeutic target.
#OpenAccess: doi.org/10.1016/j.ge...
May 4, 2026 at 3:00 PM
#PDE4DIP activation plays a critical role in #LeftVentricularNoncompaction development by regulating #cellpolarity, skeleton, and energy metabolism via the Rho-ROCK pathway, thereby offering potential targets and therapeutic strategies. #medsky

#OpenAccess:
www.sciencedirect.com
July 4, 2025 at 5:56 PM
This study identifies #PDE4DIP as a key player in #LeftVentricularNoncompaction development by regulating #cellpolarity, skeleton, and energy metabolism via the Rho-ROCK pathway. #LVNC
Dysfunction of PDE4DIP contributes to LVNC development by regulating cell polarity, skeleton ec1
This study demonstrates that dysfunction of PDE4DIP contributes to the development of left ventricular non-compaction (LVNC) cardiomyopathy by disrupting cel...
youtube.com
June 25, 2025 at 5:18 AM
Mechanistic insights into how PDE4DIP contributes to the #pathogenesis of left ventricular non-compaction (#LVNC) by regulating #CellPolarity, cytoskeleton architecture, & energy metabolism through the Rho-ROCK pathway. #cardiomyopathy #medsky

#OpenAccess: www.sciencedirect.com/science/arti...
April 7, 2025 at 2:00 PM
Mechanistic insights into how PDE4DIP contributes to the #pathogenesis of left ventricular non-compaction (#LVNC) by regulating #CellPolarity, cytoskeleton architecture, & energy metabolism through the Rho-ROCK pathway. #cardiomyopathy #medsky

#OpenAccess: www.sciencedirect.co...
March 4, 2025 at 2:00 PM
Two cells, one twist 🧬🔁
Myosin asymmetry breaks mirror symmetry & sparks spontaneous 3D rotations in doublets.
Adherens junctions🩶, focal adhesions🟢 & actomyosin🔴 Biology meets active matter physics.
#CellPolarity #Fluorescencefriday #ActiveMatter #Microscopy
May 2, 2025 at 2:02 PM
New in @jcb.org: Jarosińska, Boxem et al. @utrechtuniversity.bsky.social reveal how LGL-1 and PAC-1 team up to polarize the #Celegans embryo, providing new insight into how conserved #polarity mechanisms are adapted across species.
rupress.org/jcb/article/...

#CellPolarity #Genetics
May 6, 2026 at 2:30 PM
Cdc42 is a small GTPase crucial for #CellPolarity, but how does it contribute to #aging when upregulated? This study shows that the ER-anchored chaperone Ydj1 interacts with Cdc42, enhancing its stability & partitioning during asymm #CellDivision & aging in yeast @plosbiology.org 🧪 plos.io/4qz7WaM
February 16, 2026 at 9:05 AM
Cdc42 is a small GTPase crucial for #CellPolarity, but how does it contribute to #aging when upregulated? This study shows that the ER-anchored chaperone Ydj1 interacts with Cdc42, enhancing its stability & partitioning during asymm #CellDivision & aging in yeast @plosbiology.org 🧪 plos.io/4qz7WaM
February 13, 2026 at 5:35 PM
Cdc42 is a small GTPase crucial for #CellPolarity, but how does it contribute to #aging when upregulated? This study shows that the ER-anchored chaperone Ydj1 interacts with Cdc42, enhancing its stability & partitioning during asymm #CellDivision & aging in yeast @plosbiology.org 🧪 plos.io/4qz7WaM
February 13, 2026 at 2:05 PM
Delighted to move over to Bluesky. We are a #CellPolarity
lab using #3Dculture to study how cells collectively move in cancer @cruk-si.bsky.social. Give us a follow if you're into 3D culture, phosphoinositides or metastasis. Strong supporter of equality and helping pull folks up the ladder.
November 13, 2024 at 3:16 PM
Jarosińska, Boxem et al. @utrechtuniversity.bsky.social reveal how LGL-1 and PAC-1 team up to polarize the #Celegans embryo, providing new insight into how conserved #polarity mechanisms are adapted across species.
rupress.org/jcb/article/...

#CellPolarity #Genetics
May 5, 2026 at 4:45 PM
🧪 Canonical autophagy isn’t enough! In our new study, only CASM can coordinate the membrane remodeling needed to build a single lumen in tubes. Read how CASM drives endocytic recycling to drive morphogenesis www.biorxiv.org/content/10.1...
#ScienceTwitter #Autophagy #Morphogenesis #CellPolarity
April 29, 2025 at 7:43 AM