Reposted by Liedewij LaanRobert Arkowitz @robertarkowitz.bsky.social · 21/08/2026www.biorxiv.org/content/10.6...biorxiv.orgSpecies Context Reverses PPIP5K Control of Fungal Morphogenesis and Actin OrganizationInositol pyrophosphates are conserved signaling molecules synthesized by the bifunctional PPIP5K enzymes, but how their cellular functions diversify across species remains poorly understood. Here, we ... 011
Reposted by Liedewij LaanAndrew Kennard @askennard.bsky.social · 19/08/2026The kinetochore is essential for cell division across species, but its components and organization evolve dramatically. How can that be? Our first foray into this fascinating question is up now on biorxiv: 🧪 1/12 www.biorxiv.org/content/10.6...biorxiv.orgKinetochore diversification in Naegleria reveals plasticity in the kinetochore-microtubule interfaceThe kinetochore--the molecular machine that couples chromosomes to spindle microtubules--performs an essential, tightly regulated function, yet varies dramatically across eukaryotes. Microtubules are ... 15227
Reposted by Liedewij LaanMarko Kaksonen @kaksonen.bsky.social · 11/08/2026Endocytic clathrin coats are surprisingly dynamic: triskelia turn over in seconds. How is the turnover regulated and what is it for? Read Anne-Laure Boinet's preprint with @rouxlab.bsky.social www.biorxiv.org/content/10.6... 17023
Reposted by Liedewij LaanMargherita Battistara @mbattistara.bsky.social · 08/07/2026🪲🪰 Our preprint is out! This was a team effort with @wolframponisch.bsky.social, @matthewabenton.bsky.social and Ewa Paluch. We asked whether Drosophila and Tribolium use the same cell behaviours to fold their embryos during gastrulation. 🧵👇 www.biorxiv.org/content/10.6...biorxiv.orgMorphospace analysis reveals divergent cellular behaviours driving tissue internalisation during insect gastrulationDuring gastrulation, embryonic epithelia undergo large-scale remodelling to internalise the mesoderm. Whether the cellular mechanisms underlying these tissue deformations are conserved across species ... 36725
Reposted by Liedewij LaanLiedewij Laan @liedewijlaan.bsky.social · 29/06/2026New paper out in #PRX-Life! We take a step back from molecular detail and ask: how do you quantify cell #polarization at the #mesoscale? Using live-cell imaging + analysis, we define phases of cell polarization and a framework to compare wildtype + perturbed cells. journals.aps.org/prxlife/abst...journals.aps.orgQuantitative Characterization of Budding Yeast Polarization at the MesoscaleA quantitative description of budding yeast polarization derived from live cell imaging enables systematic comparison of polarization phenotypes, revealing varying degrees of variation in physical cha... 1135
Liedewij Laan @liedewijlaan.bsky.social · 29/06/2026New paper out in #PRX-Life! We take a step back from molecular detail and ask: how do you quantify cell #polarization at the #mesoscale? Using live-cell imaging + analysis, we define phases of cell polarization and a framework to compare wildtype + perturbed cells. journals.aps.org/prxlife/abst...journals.aps.orgQuantitative Characterization of Budding Yeast Polarization at the MesoscaleA quantitative description of budding yeast polarization derived from live cell imaging enables systematic comparison of polarization phenotypes, revealing varying degrees of variation in physical cha... 1135
Liedewij Laan @liedewijlaan.bsky.social · 17/06/2026Looking for an assistant professorship in biophysics of living systems? We are hiring, so check it out! 010
Reposted by Liedewij LaanMarco Fumasoni @marcofumasoni.bsky.social · 12/06/2026A few snapshots from the @embo.org workshop “The Rules of the Game: biophysical and molecular principles in cellular evolution” — and an excuse to thank everyone who made it such a fun, stimulating, and inspiring few days at @gimminstitute.bsky.social #EMBORulesOfTheGame 1254
Reposted by Liedewij LaanHuman Frontier Science Program @hfspo.bsky.social · 11/06/2026How do we fund and publish research that doesn't fit neatly into a single discipline? Last week, at the #EMBORulesOfTheGame, #HFSP Chief Scientific Officer Guntram Bauer presented how HFSP supports #frontierscience across disciplines and borders. @embo.org 063
Reposted by Liedewij LaanPeter Coles 🏳️🌈 🏳️⚧️ 🇮🇪 @telescoper.bsky.social · 07/06/2026Whichever of the purple dots you look at turns more purple. 28767273
Reposted by Liedewij LaanLaura Tovini @ltovini.bsky.social · 05/06/2026Challenged by the many creative minds met at the #EMBORulesOfTheGame! Physicists + biologists in the same room = 🤯💡 051
Liedewij Laan @liedewijlaan.bsky.social · 29/05/2026Nice piece in Europhysics news about our initiative to strengthen our public institution with STEM expertise. 020
Liedewij Laan @liedewijlaan.bsky.social · 19/05/2026Our paper is out in ACS Synthetic Biology!! A major bottleneck in reconstituting cell polarity is obtaining functional prenylated Cdc42. Here, we developed a Sortase-based strategy to farnesylate Cdc42, which retains membrane binding and regulatory GTPase activity. doi.org/10.1021/acss...) 190
Reposted by Liedewij LaanIvo van Vulpen @ivovanvulpen.bsky.social · 18/05/2026Paar foto's dag 1 wetenschapscommunicatie-workshop: - Marcel Kouwenhoven over BiBB (@liedewijlaan.bsky.social) - Gideon Koekoek over Erkennen en Waarderen - Kees Moelijker (met @tristandupree.bsky.social en Tess Heeremans) over 'dode dieren met een verhaal' en de Ig Nobelprijs - Pizza borrel! 121
Reposted by Liedewij LaanMarco Fumasoni @marcofumasoni.bsky.social · 08/05/2026The final program for the EMBO Workshop “The rules of the game: biophysical & molecular principles in cellular evolution” is online! A few seats are still available if you want to attend (Deadline May 15th) @embo.org @gimminstitute.bsky.social meetings.embo.org/event/26-cel...meetings.embo.orgThe rules of the game: biophysical & molecular principles in cellular evolutionCells are the fundamental units of life, shaped by evolution into a remarkable diversity of forms and functions. Much is known about the roles of genes and proteins, the regulation of molecular proce… 035
Reposted by Liedewij LaanLiedewij Laan @liedewijlaan.bsky.social · 11/04/2026Our paper is out m in BioEssays! We explore how a process-based view of biology, focusing on dynamic interactions rather than individual molecules, can reshape how we think about cell polarity, opening up new questions and ways of doing cell biology. onlinelibrary.wiley.com/doi/10.1002/...onlinelibrary.wiley.comPolarization as a Process: The Potential of Process Ontology for Understanding Cellular Symmetry BreakingProcess ontology proposes that biological systems are best understood as composed of dynamic processes rather than static components. However, application to concrete research practice has remained c... 0229
Liedewij Laan @liedewijlaan.bsky.social · 11/04/2026Our paper is out m in BioEssays! We explore how a process-based view of biology, focusing on dynamic interactions rather than individual molecules, can reshape how we think about cell polarity, opening up new questions and ways of doing cell biology. onlinelibrary.wiley.com/doi/10.1002/...onlinelibrary.wiley.comPolarization as a Process: The Potential of Process Ontology for Understanding Cellular Symmetry BreakingProcess ontology proposes that biological systems are best understood as composed of dynamic processes rather than static components. However, application to concrete research practice has remained c... 0229
Liedewij Laan @liedewijlaan.bsky.social · 04/03/2026Deadline for abstracts is extended untill March 19! So if you are interested in the interfase of physics of life and evolution, consider applying! 063
Reposted by Liedewij LaanThibaut Brunet @thibautbrunet.bsky.social · 28/02/2026Final version @nature.com of our paper describing unconventional multicellular development in a choanoflagellate inhabiting an extreme environment. A ton of new data since the first @biorxivpreprint.bsky.social preprint (which we've kept updating). A brief 🧵 (carried over from the old place) 16382152
Reposted by Liedewij Laanpaveltomancak.bsky.social @paveltomancak.bsky.social · 22/02/2026This is great #stuffthatmatters. Congratulations to Liedewij Laan and @embopress.org for recognizing the importance and brilliance of this work. 1133
Reposted by Liedewij LaanEMBO Reports @emboreports.org · 11/02/2026Liedewij Laan @liedewijlaan.bsky.social and co-workers show that the #GEF Cdc24 and the #GAP Rga2, key regulators of the GTPase Cdc42 in Saccharomyces cerevisiae, exhibit concentration-dependent and synergistic regulation of Cdc42 activity. link.springer.com/article/10.1... 032
Liedewij Laan @liedewijlaan.bsky.social · 22/02/2026And lastly, a philosophical preprint by Marieke Glazenburg, about cell polarity as a process, bit out of the ordinary, but I recommend reading it! philarchive.org/rec/GLAPAA-4philarchive.orgMarieke M. Glazenburg & Liedewij Laan, Polarization as a process: the potential of process ontology for understanding cellular symmetry breaking - PhilArchiveSince the advent of molecular biology, research in cell biology has been strongly focused on identifying specific genes and proteins responsible for cellular phenomena. However, it is increasingly rec... 051
Liedewij Laan @liedewijlaan.bsky.social · 22/02/2026And another paper! We show that compensatory evolution in the yeast polarity network leads to global genetic rewiring: restoring polarity reshapes gene disruption tolerance across the genome and rewires entire cellular processes—not just individual genes. doi.org/10.1038/s44319-026-00709-4doi.orgGlobal genetic rewiring during compensatory evolution in the yeast polarity network - EMBO ReportsFunctional defects resulting from deleterious mutations can often be restored during evolution by compensatory mutations. Importantly, this process can generate the genetic diversity seen in networks ... 13410
Liedewij Laan @liedewijlaan.bsky.social · 22/02/2026New 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 #syntheticbiologydoi.orgOligomerization-dependent and synergistic regulation of Cdc42 GTPase cycling by a GEF and a GAP - EMBO ReportsCell 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... 1165
Reposted by Liedewij LaanLiedewij Laan @liedewijlaan.bsky.social · 12/02/2026Meeting alert! EMBO workshop about molecular and physical principles in evolution in Portugal, 2-5 June 2026. Deadline for registration is March 1st. Check out the website it should be a fun and informative workshop bridging evolutionary biology and physics of life meetings.embo.org/event/26-cel...meetings.embo.orgThe rules of the game: biophysical & molecular principles in cellular evolutionCells are the fundamental units of life, shaped by evolution into a remarkable diversity of forms and functions. Much is known about the roles of genes and proteins, the regulation of molecular proce… 02112
Liedewij Laan @liedewijlaan.bsky.social · 12/02/2026Meeting alert! EMBO workshop about molecular and physical principles in evolution in Portugal, 2-5 June 2026. Deadline for registration is March 1st. Check out the website it should be a fun and informative workshop bridging evolutionary biology and physics of life meetings.embo.org/event/26-cel...meetings.embo.orgThe rules of the game: biophysical & molecular principles in cellular evolutionCells are the fundamental units of life, shaped by evolution into a remarkable diversity of forms and functions. Much is known about the roles of genes and proteins, the regulation of molecular proce… 02112
Reposted by Liedewij LaanSophie G Martin @sophiemartinlab.bsky.social · 06/05/2025The lab is on a roll. 2nd preprint in as many weeks! High levels of Cdc42 GTPase underlie an all-or-none decision to fuse. Great team effort led by PhD students @sajjitasaha.bsky.social and @aiswaryasajeevan.bsky.social www.biorxiv.org/content/10.1... @biology-unige.bsky.socialbiorxiv.orgHigh levels of Cdc42 GTPase underlie an all-or-none decision to fuseCdc42 is a Rho-family GTPase conserved across eukaryotes, where it plays essential roles in cell polarization. In single-celled yeast systems, Cdc42 is a key driver of symmetry breaking and polarized ... 1258
Reposted by Liedewij LaanEuropean Commission @ec.europa.eu · 05/05/2025"Science is an investment. We will put forward a new 500 million package for 2025-2027 to support the best and the brightest researchers and scientists from Europe and around the world." — President @vonderleyen.ec.europa.eu at the ‘Choose Europe for Science' event at La Sorbonne 🇫🇷 35963301
Reposted by Liedewij LaanThat Photo Guy @thatphotoguy.bsky.social · 03/03/2025As I can’t sleep (it’s 02:18 here), here’s a photo of our moon casting a soft light over Loch Morlich, in the Scottish Highlands. #insomnia #scotland #bluesky 681092104
Reposted by Liedewij LaanUrsula von der Leyen @vonderleyen.ec.europa.eu · 28/02/2025Your dignity honors the bravery of the Ukrainian people. Be strong, be brave, be fearless. You are never alone, dear President Zelenskyy. We will continue working with you for a just and lasting peace. 16107340614669
Reposted by Liedewij LaanMinna Ålander 🌻 @alanderminna.bsky.social · 28/02/2025I don’t care whether you’re pessimistic or optimistic as long as it makes you act. Europe can rise to the occasion but we need to believe it’s possible in the first place, and push and support European leaders to do the right thing. Uplifting bedtime reading for Europeans below ⬇️open.substack.comIs Trump Making Europe Great Again?In a world of zero-sum thinking, the EU's win-win logic can be a powerful tool. 425750
Reposted by Liedewij LaanBert Hubert 🇺🇦🇪🇺🇺🇦 @berthubert.bsky.social · 23/02/2025It is very hard to accept, but it is no longer safe to move EU governments & societies to US clouds. Not only is it dangerous to do so, it is also likely flat out illegal in the near feature. We're trading convenience for utter dependence on a mad king. It should stop. berthub.eu/articles/pos...berthub.euIt is no longer safe to move our governments and societies to US clouds - Bert HubertThe very short version: it is madness to continue transferring the running of European societies and governments to American clouds. Not only is it a terrible idea given the kind of things the “King o... 35799361
Reposted by Liedewij LaanCaroline de Gruyter @carolinedegruyter.bsky.social · 22/02/2025Funny, we both see the same development. And Northern and Baltic countries are leading the way. I wrote a column about it this week (excuse my Dutch) www.nrc.nl/nieuws/2025/...nrc.nlColumn | Nederland laat zich lam slaan, Noord-Europa wijst de wegIn Europa: Caroline de Gruyter 311625
Reposted by Liedewij Laanmaksym.eristavi @maksymeristavi.com · 18/02/2025500 million Europeans are waiting for 340 million Americans to protect them from 140 million russians who haven’t been able to win against 40 million Ukrainians for 3 years. what happened to our confidence? 13401146
Liedewij Laan @liedewijlaan.bsky.social · 21/01/2025Truly spectacular talk by @elisabethbik.bsky.social about science integrity, what a hero! #nwophysics 3314
Liedewij Laan @liedewijlaan.bsky.social · 21/01/2025So many people in our session about how STEM science contributes value to society! #nwophysics 0130
Liedewij Laan @liedewijlaan.bsky.social · 21/01/2025After many years back to Physics@Veldhoven, curious what the discussions are about these days! First talk about fossiels of the big bang! 171
Reposted by Liedewij LaanJake Yeston @jakeyeston.bsky.social · 03/01/2025We at @science.org gave young scientists this prompt: Write a pair of haiku. In the first, describe academia or your field in 2025; in the second, describe your predictions for 2050. Read a selection of the responses here: 🧪 www.science.org/doi/10.1126/...science.orgNextGen Voices: 2025 and 2050, in haiku 33717
Liedewij Laan @liedewijlaan.bsky.social · 21/12/2024Aanrader!! Ik verslond als kind haar boeken en ben daar zeker door beïnvloed. www.nrc.nl/nieuws/2024/...nrc.nlMoedige meisjes zijn Thea Beckman-meisjes, blijkt uit haar boeiende biografieThea Beckman: Op de barricaden stond ze niet, maar de ‘saai’ levende kinderboekenschrijfster belichaamde het feminisme, aldus haar biografie. Die toont hoe boeken jonge levens kunnen beïnvloeden. 030
Liedewij Laan @liedewijlaan.bsky.social · 16/12/2024So great to be at ASCB again, so much cool science! 070
Liedewij Laan @liedewijlaan.bsky.social · 04/12/2024I managed to separate the full length Bem1 protein from its degradation products 💪 (Another fun Sinterklaasevent with the lab!) 090
Liedewij Laan @liedewijlaan.bsky.social · 03/12/2024Over the moon that my ERC Consolidator grant proposal, PolarRobustness, got funded!!! I would like to express my deep felt gratitude to the ERC and to the many prople who helped along the way. In particular all my lab members: it has been a joy and privilige to work with all of you! #ERCCoG 8421
Liedewij Laan @liedewijlaan.bsky.social · 28/11/2024Post a photo of yourself from a different era (six year old enjoying autumn, with twin sister and BFF) 110
Reposted by Liedewij LaanClaes de Vreese @claesdevreese.bsky.social · 23/11/2024By now the coalition AGAINST cuts in higher education and research in the Netherlands is so big and includes unions, employers, 40+ important companies, UNESCO, law firms, NGOs and civil society actors.... Are there ANY proponents left in favour of the cuts? woinactie.blogspot.com/p/steunbetui...woinactie.blogspot.comSteunbetuigingenWOinActie is een beweging van studenten en medewerkers en maakt zich sterk voor de universiteit en haar toekomst. 25418
Reposted by Liedewij LaanDavid Kuster @rnadavid.bsky.social · 18/11/2024Biomolecular condensate starter pack! Trying to compile & to bring together biomolecular condensate enthusiasts & critics! Please join this non-exhaustive (sorry!) collection & just ping me for addition. #condensates, #phaseseparation, #granules, #IDPs go.bsky.app/NFqmffa 194525
Reposted by Liedewij LaanKirsty Wan @micromotility.bsky.social · 13/11/2024Couldn't find one so made a quick physics of life list, enjoy! go.bsky.app/EA2VsDN 7813077