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Shweta Nandakumar

@bucklingmt.bsky.social
160 followers 251 following 40 posts

She/her, Postdoc at #CytoMorphoLab | Previously @schaedellab.bsky.social | Cytoskeleton 🧑‍🔬 | Motors ⚡| Bibliophile

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Reposted by Shweta Nandakumar
Robert Insall @robinsall.bsky.social · 16/09/2026
Very interesting paper. An old-fashioned concept - sadly now rare in biology - measure stuff accurately, and you can understand how it works... www.biorxiv.org/content/10.6...
biorxiv.org
Uncoupling microtubule lifetime, stability and post-translational modifications.
Microtubules (MTs) undergo continuous cycles of growth and disassembly. Because the transitions between these states are stochastic, MT age varies widely within a population. As MTs age, they are thou...
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Reposted by Shweta Nandakumar
The EMBO Journal @embojournal.org · 14/09/2026
Biochemical diversity of tubulin: Carsten Janke, Zdenek Lansky and collaborators screen 46 microtubule-associated proteins to reveal their distinct affinities to tubulin isotypes and posttranslational modifications link.springer.com/article/10.1...
link.springer.com
Microtubule posttranslational modifications provide unique recognition patterns for associated proteins - The EMBO Journal
Microtubules are key components of the eukaryotic cytoskeleton involved in vital functions in virtually every cell. Among the emerging molecular mechanisms to adapt microtubules to their diverse funct...
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Mariana Romeiro Motta @mromeiromotta.bsky.social · 08/09/2026
PhD position available (start 2027) in my group at TUM! We study how mechanical stress controls cell cycle progression and cytoskeletal dynamics in plants, combining cell biology, biochemistry and biophysics. CV + cover letter to mariana.romeiro-motta@tum.de. RTs welcome! #PlantSciJobs
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Cahir O'Kane @cahirokane.bsky.social · 12/08/2026
Laser scan versus spinning disc
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EMBO @embo.org · 06/08/2026
Interested in a cross-scale understanding of #mechanobiology? Join the EMBO Workshop "Forces across scales" in Porto, Portugal, 27–30 April 2027. Deadline: 1 December 2026 meetings.embo.org/event/27-forces-s… #EMBOforces #EMBOevents 🧪
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Diez Lab @ TU Dresden @stefandiezlab.bsky.social · 19/07/2026
🔬 #JobAlert Interested in doing a PhD with us in #SyntheticBiology on the Reconstitution of Oscillatory Microtubule-Motor Systems? Check shorturl.at/wis5P (note the eligibility criteria) or/and get in touch with us shorturl.at/WmgOD. Deadline: 31 July 2026 #WeAreHiring #AcademicJobs #ScienceJobs
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Ron Orbach @orbachron.bsky.social · 19/06/2026
🚨 I am very happy to share the first preprint from our lab! www.biorxiv.org/content/10.6...
biorxiv.org
SPACA9 Acts as a Molecular Staple Modulating Microtubule Dynamic Instability
Motile cilia rely on highly stable axonemal microtubules reinforced by microtubule inner proteins (MIPs) that form a network within their lumen, yet the functions of individual MIPs remain poorly unde...
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Manuel Thery @manuelthery.bsky.social · 19/06/2026
Is there a size limit for cells ? How can cells replicate inside the architecture of their environment? Why do cells self-destroy ? This 15-minute movie vimeo.com/1173229237 shows our 2026 edition of the Living Architectures project at the @museeorsay.bsky.social
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bioRxiv Biophysics @biorxiv-biophys.bsky.social · 12/06/2026
Interactions between single actin and vimentin filaments www.biorxiv.org/content/10.64898/20…
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Henry De Belly @henrydebelly.bsky.social · 10/06/2026
We found the missing piece: the front and back also activate each other at a distance via two distinct mechanochemical pathways acting via the membrane and the cytoskeleton.
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Sareen Fiaz @sareenfiaz.bsky.social · 03/06/2026
Microtubule comets in human iPSCs to kick off my first week of grad school! ☄️💫
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EuroCilia2027 @eurocilia.bsky.social · 05/06/2026
🏆 GRAND PRIZE WINNER 🏆 Congratulations to Smilla-Maria Koy (BSc Student, Mick Lab, Saarland University, Germany) for winning our Image Competition! 🔬 "IMCD3 Spheroid with Cilia" captures primary cilia emerging into the lumen to show cell polarity. #FluorescenceFriday #Cilia #ConfocalMicroscopy
Confocal image of a hollow spheroids with apical ZO-1 signal and primary cilia emerging from the apical site pointing towards the lumen. This 3D technique is used to assess apicobasal polarity characteristics in cells, where primary cilia play an important role in establishment and maintenance.
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Ali Shaib @alishaib.bsky.social · 02/06/2026
Supplementary. Fig. 6-7
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Journal of Cell Biology @jcb.org · 26/05/2026
Saishree S. Iyer and Anna Akhmanova @utrechtuniversity.bsky.social review the mechanisms controlling plus-end elongation of centriolar and ciliary #microtubules, revealing shared principles. rupress.org/jcb/article/... #Centrioles #Cilia #Cytoskeleton
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Elias Spiliotis @septinlab.bsky.social · 10/05/2026
📣 New preprint from our lab! How does the cell place septins to actin or microtubules (MTs) with septins being ~10-100 times less than actin/tubulin? We found a phosphorylation switch controlled by GSK3 that makes that call 🧫🔬🧵 biorxiv.org/content/10.64898/2026.05.06.723191v1 1/7
biorxiv.org
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Shweta Nandakumar @bucklingmt.bsky.social · 02/05/2026
😍
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Ennio @amicoennio.bsky.social · 29/04/2026
New preprint! We asked a simple question: How do very different activating adaptors all activate dynein? Turns out: same architecture, wildly different implementations 🧵👇 doi.org/10.64898/202...
doi.org
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Denis Chrétien @dchretien.bsky.social · 11/04/2026
A very nice study showing that there is no obvious relationship between tubulin compaction/expansion state and its nucleotide state. Indeed, there is no experimental data demonstrating that GTP-tubulin is expanded in the GTP-cap at microtubule growing ends.
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sudiya14.bsky.social @sudiya14.bsky.social · 30/03/2026
1/3 Lab #Preprint alert…A cool study led by @MullickSan22454 in collab with @ms_chirps lab showing how tubulin glycylation regulates ciliary motors and MAPs in vitro. @biorxiv_biochem. #glycylation #tubulinPTMs #cilia #Intraflagellartransport. Read more biorxiv.org/content/10.648…
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Alfredo Sciortino @asciortino.bsky.social · 02/04/2026
New preprint out: arxiv.org/pdf/2604.01057 Together with JF Joanny and Sudipta, we introduce a "new" kind of active phase separation inspired by experiments with motors and microtubules and based on transport of species along a polar "pump"! @manuelthery.bsky.social @lblanchoin.bsky.social
arxiv.org
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Diez Lab @ TU Dresden @stefandiezlab.bsky.social · 02/04/2026
🥳 Excited to share our #diatom work out in @pnas.org. In a great collaboration with @nic-poulsen.bsky.social and @ulrichschwarz.bsky.social we show that diatoms modulate the curvature of their paths by dynamic switching of their cell–substrate contact sites. doi.org/10.1073/pnas.2506122123
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Journal of Cell Science @jcellsci.bsky.social · 19/03/2026
Cordula Reuther, Paula Santos-Otte, Stefan Diez and colleagues find that microtubule lattice defects facilitate spastin-mediated severing. journals.biologists.com/jcs/article/... #OpenAccess #ReadandPublish
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BioCytoLab @schaedellab.bsky.social · 16/03/2026
🎉 Exciting news! Our paper has been accepted and is now published in Wiley Advanced Science! 🚀 Congratulations @bucklingmt.bsky.social Read it here: advanced.onlinelibrary.wiley.com/doi/epdf/10....
advanced.onlinelibrary.wiley.com
Kinesin‐Induced Buckling Reveals the Limits of Microtubule Self‐Repair
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Shweta Nandakumar @bucklingmt.bsky.social · 16/03/2026
Happy to share that the study is now published in Advanced Science 🙌🥳 : advanced.onlinelibrary.wiley.com/doi/10.1002/... I want to thank my co-authors and my amazing PI @lauraschaedel.bsky.social for all the help, lovely discussions and encouragement😀
advanced.onlinelibrary.wiley.com
Kinesin‐Induced Buckling Reveals the Limits of Microtubule Self‐Repair
This study shows that kinesin-driven buckling induces extensive microtubule lattice damage that often exceeds intrinsic self-repair and leads to filament failure. While curvature, motor motility, and...
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myosinactncrazy.bsky.social @myosinactncrazy.bsky.social · 06/03/2026
www.nature.com/articles/s41...
nature.com
Adaptations in Plasmodium tubulin determine distinct microtubule architectures, mechanics and drug susceptibility - Nature Communications
Tubulin conservation presents a challenge to understanding microtubules’ diverse functions in eukaryotes. Here, the authors characterize the structures of P. falciparum microtubules to show how evolut...
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Andy Moore @aaandmoore.bsky.social · 05/02/2026
An intracellular meteor shower. EB3 comets tracking growing microtubule plus-ends in a cultured cell.
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BioCytoLab @schaedellab.bsky.social · 02/02/2026
Our new preprint is live!🎉 Cytosolic factors govern vimentin network architecture and mechanics. Cytosolic components shape vimentin IF networks & mechanics - beyond minimal reconstitutions. On bioRxiv now! Congrats @dyuthisreekumar.bsky.social www.biorxiv.org/content/10.6...
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Shweta Nandakumar @bucklingmt.bsky.social · 25/01/2026
😍😍😍😍
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Shweta Nandakumar @bucklingmt.bsky.social · 10/01/2026
Exciting new preprint from @schaedellab.bsky.social 🔬🧫 Vimentin network architecture and mechanics is mediated by cytosolic regulation. I can't help but marvel at the beautiful vimentin network images😍😍 I am so happy it's finally out😍😍❤️ Congratulations @dyuthisreekumar.bsky.social 👏🎉
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myosinactncrazy.bsky.social @myosinactncrazy.bsky.social · 30/12/2025
Paclitaxel induces NM2-dependent cellular contraction independent of microtubule acetylation in live cells www.biorxiv.org/content/10.6...
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Joyce Meiring @joycemeiri.bsky.social · 24/12/2025
Bored over the holidays? Give our new preprint on how #microtubule lattice alteration by taxols can regulate #RhoA #signalling via GEF-H1 a read! Perhaps a new mechanism of action for taxol #chemotherapeutics during interphase. www.biorxiv.org/content/10.6... Happy holidays ✨🎄
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Cell - a Cell Press journal @cp-cell.bsky.social · 08/12/2025
Now online! Structural basis of microtubule-mediated signal transduction
dlvr.it
Structural basis of microtubule-mediated signal transduction
This study presents a structural basis for understanding how microtubules can act as spatiotemporal signal sensors to control cellular responses.
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jobRxiv @jobrxiv.org · 08/12/2025
PhD Position in Biophysics #ScienceJobs #AcademicSky
jobrxiv.org
PhD Position in Biophysics
Post a job in 3min, or find thousands of job offers like this one at jobRxiv!
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Claire Dessalles @clairedessalles.bsky.social · 02/12/2025
📢Internships on cellular nematics! 🔬Come for the pretty images, stay for the cool physics: each project combines in vitro experiments with advanced microscopy and image analysis. 📧Feel free to DM or email me with any questions.
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Andy Moore @aaandmoore.bsky.social · 25/11/2025
I like this movie, but a friend of mine likes to complain about the obvious stitching artifacts. I'll try harder next time, Michael. Vimentin (orange) and ER (blue) in an overnight acquisition.
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Shweta Nandakumar @bucklingmt.bsky.social · 21/11/2025
😍😍😍
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Dylan Burnette @mag2art.bsky.social · 10/11/2025
iPS cell-derived cardiac myocytes (heart muscle cells) typically beat about once per second, so I usually speed up the movies I post; otherwise, scrollers might miss the action. But every now and then, a cell looks like this in real time. #CellBiology
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Ghina BADIH @ghinabadih.bsky.social · 18/11/2025
Go right or left? A question that we encounter very often in our daily lives, and while our decision may sometimes be hindered by the fear of making a mistake, cells DO NOT HESITATE!!! They swirl with the confidence of someone who’s always RIGHT… or LEFT!!!
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bioRxiv Biophysics @biorxiv-biophys.bsky.social · 17/11/2025
Vimentin promotes actin assembly by stabilizing ATP-actin subunits at the barbed end www.biorxiv.org/content/10.1101/202…
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David Mick @mick-lab.bsky.social · 14/11/2025
Thrilled to share "in situ APEX activation" (iAPEX), a proximity labeling technology for subcellular #proteomics applied to primary #cilia. iAPEX uses an enzymatic cascade, in which a D-amino acid oxidase locally produces H2O2 to activate ascorbate peroxidase. www.nature.com/articles/s41...
nature.com
An enzymatic cascade enables sensitive and specific proximity labeling proteomics in challenging biological systems - Nature Communications
Proximity labeling allows proteomic mapping of subcellular structures. Here, Sroka et al. develop in situ APEX activation (iAPEX) to overcome limitations of labeling specificity and H2O2 toxicity, app...
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Mark Peifer (He, him) @peiferlabunc.bsky.social · 15/10/2025
Dick is one of the most thoughtful folks in cell biology--this is a must read for anyone interested in microtubules!
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Shweta Nandakumar @bucklingmt.bsky.social · 06/10/2025
Playing around with @kwolbachia.bsky.social 's LUT manager plugin. Absolutely love the campfire LUT🔥 😍#microtubulemonday
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bioRxiv Biophysics @biorxiv-biophys.bsky.social · 19/09/2025
Expression of vimentin intermediate filaments in epithelial cells promotes cell migration and cell matrix interaction in 3D www.biorxiv.org/content/10.1101/202…
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Mariana Romeiro Motta @mromeiromotta.bsky.social · 16/09/2025
Have you ever wondered how microtubules withstand and respond to mechanical stress in cells? Here we show by in vitro reconstitution assays that MAP65-1 and PRC1 promote microtubule nucleation on existing lattices, especially on those with structural irregularities linked to mechanical stress.
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Shweta Nandakumar @bucklingmt.bsky.social · 16/09/2025
Here's some more exciting new news from the microtubule world ✨Great work from @marianattom.bsky.social the @schaedellab.bsky.social showing how MAP65-1/PRC-1 reinforce microtubules under mechanical stress. Look at them microtubule arrays in plant cells 😍 ( To quote Verstappen, "Simply lovely")
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Shweta Nandakumar @bucklingmt.bsky.social · 14/09/2025
Despite their high rigidity, microtubules (MTs) dynamically bend and buckle in cells. MT-self repair is inherent to their metastable nature, but it remains unclear whether just inherent repair mechanisms are sufficient to maintain MT integrity🧵 (1/9) www.biorxiv.org/content/10.1...
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Shweta Nandakumar @bucklingmt.bsky.social · 10/09/2025
Congratulations, Subham 🎉🎉🎉 Great study and uber cool microtubule self-repair images that I can stare at for hours 😍😍😍
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Sandra Iden @sandraiden.bsky.social · 21/06/2025
Upcoming interdisciplinary meeting: Cell Physics 2025 When? October 7-9, 2025 Where? Saarbruecken, Germany Relevant dates? Early-bird deadline: June 30, regular registration by August 31 Several opportunities for short-talks selected from abstracts More info at: cell-physics.uni-saarland.de
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