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Reena Kumari

@reenak.bsky.social
287 followers 531 following 8 posts

Cell biologist at ISTAustria. MSCA IST-BRIDGE fellow. Post-doc at Sixt lab Interested in #cytoskeleton #actin #microtubule #cellbiology #cellmigration #mechanobiology #running #hiking #art PhD from Pekka Lappalainen lab, University of Helsinki.

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Reposted by Reena Kumari
American Society for Cell Biology @ascbiology.bsky.social · 6h
From MBoC: How do cells coordinate actin and microtubules? New research shows that CAP-driven actin turnover helps organize microtubules in epithelial cells, supporting trafficking and cell architecture. www.molbiolcell.org/doi/10.1091/mbc…
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Reena Kumari @reenak.bsky.social · 01/10/2026
Really happy to see this out, Philipp! Many congratulations 🥳
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Philipp Radler @radler92.bsky.social · 01/10/2026
The first paper of my PostDoc in Christa Schlepers group (@archaea-vienna.bsky.social) on the dynamics of Asgard archaea is now out in Nature! www.nature.com/articles/s41... This was a great team effort and I am looking forward to uncover the complex behavior of these cells further!
nature.com
Dynamic protrusions mediate crawling motility in Asgard archaea - Nature
Anoxic live-cell imaging shows actin-dependent crawling motility and dynamic protrusions in Asgard archaea, providing insights into cellular innovations that may have contributed to eukaryotic evoluti...
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Christophe 🔬 Leterrier @christlet.bsky.social · 24/09/2026
I think I'm going to lose it being lectured on microscopy image presentation integrity by the winner of the Small Artificial World in Motion competition
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Joyce Meiring @joycemeiri.bsky.social · 24/09/2026
Excited to share that our latest story on #microtubule conformation controlling cell #signaling is now out in NCB! We show that microtubule expansion by taxane chemotherapeutics releases microtubule bound GEF-H1 which in turn activates RhoA/ROCK signaling. ✨ www.nature.com/articles/s41...
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Reena Kumari @reenak.bsky.social · 24/09/2026
Congratulations Joyce :) great work!
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David Drubin @drubin.bsky.social · 22/09/2026
In a new preprint we provide evidence that biophysical properties of protein condensates can explain the order of events in the endocytic pathway, and that these events are tuned by protein condensate phosphorylation. www.biorxiv.org/content/10.6...
biorxiv.org
Phosphoregulation of hierarchical protein condensate formation during clathrin-mediated endocytosis
The sequential assembly of over 50 proteins during clathrin-mediated endocytosis (CME) is well documented in yeast. However, the mechanisms governing this ordered recruitment remain poorly understood....
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Johanna Joyce @johannajoyce.bsky.social · 25/11/2024
Women are under-represented at senior levels in #academia globally, & across all #science 🧪 disciplines, as shown by these "scissor-shaped curves" ✂️ So how can we ever achieve #gender #equality? We discuss various strategies in this #Cell Commentary #WomeninSTEM www.cell.com/cell/fulltex... 🧵 1/
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Nalle Pentinmikko @npentinmikko.bsky.social · 16/09/2026
I have an open position for a PhD student. In my newly established lab @helsinki.fi we investigate regenerative processes in the mammalian liver. The call is open until October 6th. Apply here: tinyurl.com/mh9k2nav For more information: www.pentinmikko-lab.com Please share!
tinyurl.com
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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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Justin Taraska @taraska.bsky.social · 24/08/2026
The Biophysical Society Membrane Fusion, Fission, and Traffic Subgroup is hosting an exciting set of 4 virtual talks on Wednesday September 16th starting at 1 pm Eastern Time on clathrin structure and dynamics. Please join! www.biophysics.org/outreach/sub...
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Reena Kumari @reenak.bsky.social · 21/08/2026
Super cool Jerry! Congratulations 🥂
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myosinactncrazy.bsky.social @myosinactncrazy.bsky.social · 21/08/2026
www.biorxiv.org/content/10.6... DAAM1 formin and Ena/VASP proteins assemble functionally distinct actin filaments for focal adhesions
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Reena Kumari @reenak.bsky.social · 21/08/2026
Check this interesting work from the amazing @xianglejerry.bsky.social from Lappalainen Lab
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myosinactncrazy.bsky.social @myosinactncrazy.bsky.social · 18/08/2026
super awesome postdoc opportunity alert!
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Reena Kumari @reenak.bsky.social · 17/08/2026
#fluorescenceMonday Love the veils of dendritic cell under partial confinement. #actin
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Michal Dibus @midibu.bsky.social · 10/07/2026
1/5 🎉 Finally, the results of my main postdoctoral project are out in @natcomms.nature.com! Adhesion-derived condensates control component availability to regulate adhesion dynamics bit.ly/4y9E8Xr Also excited to see the paper highlighted in Nat Comms Editors’ Highlights 🥳 bit.ly/44n4O9i
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Institute of Science and Technology Austria (ISTA) @istaresearch.bsky.social · 13/01/2026
Inspiration often arrives when we least expect it. For ISTA scientist @reenak.bsky.social​, it sparked while she and her colleagues captured actin filaments under the microscope. The result is not only a beautiful art piece but also a glimpse into the cellular architecture that shapes life.
🎨 Artwork © Reena Kumari | ISTA📸 Superresolution Microscopy Image © Reena Kumari, Isabelle Mayer, Michael Sixt | ISTA
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Maik Bischoff @maikbischoff.bsky.social · 15/12/2025
🚨 PhD Position Available 🚨 I’m recruiting a PhD student to join my lab at the Multiscale Imaging Centre (MIC), Münster, Germany. www.bischofflab.com/jobs Fully funded ✅ #Cellbio #Morphogenesis #Microscopy #Drosophila #PhD (Details Below) Original Posting: stellen.uni-muenster.de/jobposting/d...
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Ivaska Lab @ivaskalab.bsky.social · 04/12/2025
We are very happy to share our latest work exploring the role of newly synthetized integrin-α5 using RUSH. We found that a subset goes to the PM via unconventional secretion! Big thanks to all involved! Read more at doi.org/10.1083/jcb.... @mathildemathieu.bsky.social @martina-lerche.bsky.social
doi.org
Regulation of cell dynamics by rapid integrin transport through the biosynthetic pathway | Journal of Cell Biology | Rockefeller University Press
The study reveals that newly synthesized integrins can bypass the Golgi to be actively delivered to specific plasma membrane regions, where they enhance ce
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Journal of Cell Biology @jcb.org · 02/12/2025
Lerche, Mathieu, @johannaivaska.bsky.social @ivaskalab.bsky.social et al. reveal that newly synthesized #integrins can bypass the Golgi to be actively delivered to specific plasma membrane regions, where they enhance cell protrusion and #adhesion. rupress.org/jcb/article/...
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Reena Kumari @reenak.bsky.social · 15/10/2025
Nice!! Looking forward to see you tomorrow @istaresearch.bsky.social
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Jaakko Lehtimäki @jalehtimaki.bsky.social · 25/07/2025
Interested in cell migration yet bored of the canonical translocation modes? 😴 Don’t worry — we @nordenlab.bsky.social with @aiopticalbiolab.bsky.social have multipolar migration back in stock! No need to follow the other cells: extend long protrusions and roam more freely🪼 in the crowded brain.
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Guillaume Jacquemet @guijacquemet.bsky.social · 01/07/2025
- A postdoc to work on cancer extravasation (4-year project). - A postdoc help in completing Filopodia-related lab projects (2-year). - Multiple Marie Curie postdoc positions that will open in the fall. - We will open a 5-year position to cover my teaching (70% research and 30% teaching).
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Markku Hakala @mhakala.bsky.social · 22/06/2025
I'm grateful for the Research Council of Finland for granting me the Academy Research fellowship! After getting over the shock I will soon move back to Finland to start as a group leader at the Institute of Biotechnology @helsinki.fi. Looking for a PhD student soon! www.aka.fi/en/about-us/...
aka.fi
RCF winter call results: funding decisions in biosciences, health and environmental research
The Research Council of Finland’s Scientific Council for Biosciences, Health and the Environment has granted funding for 38 Academy Research Fellowships, 12 Clinical Researchers and 76 Academy P...
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Pablo J. Sáez @pjsaez.bsky.social · 10/02/2025
Hot from the press for #CellMigration + #Nucleus aficionados Karling @helenweavers.bsky.social lab show *in vivo* how immune cell adapt quickly to confined microenvironments during motility. Live-cell imaging, image analysis, #Drosophila ! Full @emboreports.org www.embopress.org/doi/full/10....
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Reena Kumari @reenak.bsky.social · 09/01/2025
That’s great! Congratulations, and all the best for the new chapter:)
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Wallace Marshall @wallaceucsf.bsky.social · 23/12/2024
Mitochondria consist of networks of cylindrical tubes, right? Not necessarily! - in our new preprint, @gavsturm.bsky.social investigates how mitochondria transiently adopt a beads-on-a-string morphology www.biorxiv.org/content/10.1...
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Prakash Lab at Stanford @prakashlab.bsky.social · 23/12/2024
Foldscope for farmers: Years of work by Dr. Mooventhan Palanisamy working as a Senior Scientist, Agricultural Research Service (ARS) at Indian Council of Agricultural Research (ICAR) at the grassroots level. @TeamFoldscope microcosmos.foldscope.com/author/2294
microcosmos.foldscope.com
Mooventhan Palanisamy
Myself Dr. Mooventhan Palanisamy working as a Senior Scientist, Agricultural Research Service (ARS) at Indian Council of Agricultural Research (ICAR).
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Christophe 🔬 Leterrier @christlet.bsky.social · 23/12/2024
Some microscopy reading 🔬📰 Single-molecule orientation-localization microscopy: Applications and approaches www.cambridge.org/core/journal...
cambridge.org
Single-molecule orientation-localization microscopy: Applications and approaches | Quarterly Reviews of Biophysics | Cambridge Core
Single-molecule orientation-localization microscopy: Applications and approaches - Volume 57
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Reena Kumari @reenak.bsky.social · 29/11/2024
#fluorescencefriday #macrophages on nano-ridges stained for actin. Imaged with Zeiss Elyra 7 #actin #cytoskeleton #microscopy #cellbiology
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Manuel Thery @manuelthery.bsky.social · 27/11/2024
Mix two motors of opposite polarity with microtubules and they will partition space ! Microtubules will get organized in polar and active barriers, sorting the two motors in separated domains, leading to the emergence of a new type of patterns. #morphogenesis doi.org/10.1073/pnas... (1/n)
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Ivaska Lab @ivaskalab.bsky.social · 19/11/2024
Introductory post on 🦋! We're a research group headed by Prof. Johanna Ivaska interested in understanding how integrins contribute to every step of cancer progression. We're located at the Turku Bioscience Center in Turku, Finland! Find out more about us and our interests here: ivaskalab.utu.fi
ivaskalab.utu.fi
Ivaska cell adhesion and cancer Lab
Integrins, matrix, motility and mechanotransduction in cancer
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Guillaume Jacquemet @guijacquemet.bsky.social · 12/11/2024
Extracellular matrix-dependent regulation of Septin 7 in focal adhesions promotes mechanosensing and functional response in fibroblasts www.sciencedirect.com/science/arti...
sciencedirect.com
Extracellular matrix-dependent regulation of Septin 7 in focal adhesions promotes mechanosensing and functional response in fibroblasts
Fibroblasts are adherent cells that maintain tissue homeostasis by sensing and responding to the extracellular matrix (ECM). Focal adhesions (FAs) lin…
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Mark Peifer (He, him) @peiferlabunc.bsky.social · 11/11/2024
In the aftermath of last weeks disaster I exited social media for a week. Today I came back here to find to my delight that the reassembly of science twitter has dramatically accelerated. Welcome/hello to the nearly 500 people who followed me in the last 6 days-we can make this a place for science!!
Front page of our lab website
https://peiferlab.web.unc.edu
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