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Ezra Levy

@ezlevy.bsky.social
94 followers 134 following 7 posts

Scientist-in-training Postdoc at the IMP

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Reposted by Ezra Levy
Yaniv Elkouby @yanivelkouby.bsky.social · 23/08/2026
Happy to share a new protocol for ex vivo #zebrafish #ovary culture from Amal Shawahny and Yoel Bogoch! Protocol for culture of zebrafish developing ovaries as an ex vivo system for investigating early oogenesis and ovarian development: STAR Protocols www.cell.com/star-protoco...
cell.com
Protocol for culture of zebrafish developing ovaries as an ex vivo system for investigating early oogenesis and ovarian development
A fundamental understanding of early oogenesis is lacking, and zebrafish serve as an excellent model for investigation, based largely on in vivo approaches. We present a protocol for long-term zebrafi...
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Matthew Taliaferro @jmtali.bsky.social · 12/08/2026
Excited to share our newest work! We asked whether RNA molecules need to be in a specific place in the cell to do their job. We found that a single RNA must reach the midbody, the structure that pinches two dividing cells apart, for cell division to finish efficiently. 🧵⬇️
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Nicholas Bellono @nbellono.bsky.social · 09/07/2026
How did octopuses evolve novel traits? Rishav Mitra, Richard Han, Trey Scott, et al serendipitously discover a unique ribosome adaptation that increases the accuracy of protein synthesis and evolved alongside their elaborate nervous systems vs deep sea relatives. www.biorxiv.org/content/10.6...
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Phil Abitua @ohnolog.bsky.social · 30/06/2026
Annual killifish continue to surprise us: they make neutrophils before almost every other cell type, even before gastrulation. Neutrophils usually arise from the lateral plate mesoderm (forming in cyan), but in killifish they are already patrolling around the embryo in gold. tinyurl.com/killiphil
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Zebrafish Rock! @zebrafishrock.bsky.social · 21/06/2026
Full spectrum of multi-colored "zebrabow" larvae. Credit to @jhenninger.bsky.social. #PrideMonth 🏳️‍🌈🐟 #ZebrafishZunday 🧪
Fluorescent brainbow-based "zebrabow" larvae neatly aligned by color. Each larva expresses up to three fluorescent proteins (RFP, CFP, YFP) at varying levels giving a unique color.
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Nick Sousanis @nsousanis.bsky.social · 19/06/2026
Finally finished @philipcball.bsky.social's wonderful "How Life Works"! When I hit the part on the 2nd Law felt compelled to share my comic on Entropy from a few years back, bits of which I'm expanding on in the new work (& one reason I read this brilliant book!) spinweaveandcut.com/sketching-en...
a single page comic about entropy - how everything tends towards disorder, and those brief moments when things go against that downward flow - specifically life. Opens with linear rod of small rectangular panels on how things get more disordered. 

The rest of the page has a much less regimented structure. In the background is a river in black that flows from upper left to lower right end of page. Over it is a spiraling panel structure that has the primary narrative. This begins with a trio of narrow rectangular small vertical panels arranged in descending order. Within them a sequence where a ball falls down stairs. A white arrow stems from the panels and points into the Y of the word yet In large black letters. This moves reading flow across the page to the right side where there are three mirroring vertical panels to the left side except these are arranged in ascending order left to right. Inside them are images of swirls - perhaps a cyclone viewed from space. And then, on the right edge, the panels align with the arm of a spiral of panels. And now we see a sequence depicting swirl of gases to birth of a star, a diagram of new elements forged in its core to star and  planet (earth) orbiting. Then swirls of clouds on earth, lightning, rain, water, volcanoes and spiraling to the center: circular panel with caption “swirls keep forming”. Now spiral path reverses from the center to show organic molecules, then dna. Outside the panel path a maple “helicopter” spirals into the panels, to sprout and grow into a tree

This second spiral arm comes out of the center and returns to standard reading order. A river has flowed behind the whole page and in the last panel, a person is seen putting a finger in creating swirls in the water - as life and stars are swirls drawing from entropy's downward stream...
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Laurel Oldach @laureloldach.bsky.social · 11/06/2026
Microscopy nerd alert: two scopes in California can now do phase contrast cryoEM - potentially fixing the tech's very low signal/noise ratio. The phase filter they used is a laser. Which is also the brightest thing in the solar system (outside of the inside of the sun). cen.acs.org/analytical-c...
cen.acs.org
15 years, flawless mirrors, and the brightest laser in the world: How physicists brought phase contrast to cryo-EM
Phase contrast enables structures of smaller proteins, could drive in-cell proteomics
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Victoria Deneke @vdeneke.bsky.social · 22/05/2026
How do sperm and egg fuse? Surprisingly, we still don’t fully know… Our field has uncovered many pieces of the fertilization puzzle, but not how they fit together. We identify ✨ SPARK ✨ - a conserved sperm complex that couples sperm-egg binding to fusion. tinyurl.com/34cm4xat Read on! 🧵👇
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Erez Raz @erezraz.bsky.social · 24/04/2026
A new paper from the lab shows that Nanos3 and Dead end1 can form a complex with eIF3d to activate RNA translation in primordial germ cells. link.springer.com/article/10.1...
link.springer.com
A Nanos3-containing protein complex can activate RNA translation in primordial germ cells in vivo - EMBO Reports
Maintaining the germline fate requires tight post-transcriptional control of RNA function. Here, we investigate how primordial germ cell (PGC) identity is maintained in zebrafish and reveal that the c...
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Theresa Zeisner @theresazeisner.bsky.social · 22/04/2026
Want to find out how a zebrafish develops from a small ball of cells into a functioning organism? 🐠 Then join us at the microscopes this Friday at @viennabiocenter.bsky.social for the Long Night of Research 🔬👩‍🔬 langenachtderforschung.at/station/592 📍Vienna BioCenter, 1030 Wien ⏰ 17:00-23:00
langenachtderforschung.at
Wie entwickelt sich ein Fisch? - #LNF26 Lange Nacht der Forschung
Wie schafft es der Zebrafisch sich binnen eines Tages aus einem Zellhaufen zu einem schwimmenden Fisch zu entwickeln? Beobachten Sie mit Hilfe eines Mikroskops, wie Zebrafische wachsen und finden Sie ...
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Reposted by Ezra Levy
Will Ratcliff @wcratcliff.bsky.social · 07/04/2026
1/25 New paper out in PNAS! We show that the fitness costs of reproductive specialization, where somatic cells give up reproduction, scale inversely with organism size. Larger organisms can afford far more soma, removing a key barrier to multicellular complexity.
pnas.org
The fitness costs of reproductive specialization scale inversely with organismal size
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Ezra Levy @ezlevy.bsky.social · 28/02/2026
Foundational work from the Brunet lab
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Reposted by Ezra Levy
Kai Mesa @kaimesa.bsky.social · 06/02/2026
Looking for motivated postdocs interested in doing exciting research at the intersection of immunology and regenerative biology. We use intravital two-photon imaging to track and manipulate immune cell behavior at the single-cell level in live animals mesa-lab.org Apply: apply.interfolio.com/180660
mesa-lab.org
Mesa Laboratory
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Agathe Chaigne @agathechaigne.bsky.social · 18/12/2025
My lab is hiring a postdoc (ERC funded)! If you're interested, get in touch!
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Victoria Deneke @vdeneke.bsky.social · 17/11/2025
Applications for the 2026 Vienna BioCenter Summer School Program are now open! Please share this opportunity with talented undergrads or Masters students interested in broadening their research experience in molecular biology in the heart of Europe 🧬
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Ezra Levy @ezlevy.bsky.social · 02/11/2025
Wonderful exploratory science.. highly anticipate seeing images from this in next year’s Nikon Small World
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Eszter Posfai @eposfai.bsky.social · 05/03/2025
A duo of preprints on the dynamics of the first cell fate decision in mouse by Madeleine Chalifoux (first grad student in the lab!) and Maria Avdeeva (Flatiron). We use quantitative live imaging of key cell fate determinants to follow the segregation of inner cell mass and trophectoderm lineages.
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Eszter Posfai @eposfai.bsky.social · 20/11/2024
Check out our new paper in @currentbiology.bsky.social by amazing grad students @ezlevy.bsky.social and @isabellaleite.bsky.social “A tug-of-war between germ cell motility and intercellular bridges controls germline cyst formation in mice” authors.elsevier.com/a/1k7fg3QW8S...
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