Benjamin Kroeger
@benjaminkroeger.bsky.social
Postdoc | Melbourne, Australia | cell & dev bio, signalling, mechanobio, transcription, microscopy | he/him
Reposted by Benjamin Kroeger
Exciting new #Zebrafish research from the #WeinsteinLab, led by Jong Park!
“Specialized gas-exchange endothelium of the zebrafish gill” —
www.biorxiv.org/content/10.6...
Amazing to see red blood cells moving through the gills! Don’t forget to check out the supplemental movies ;-)
“Specialized gas-exchange endothelium of the zebrafish gill” —
www.biorxiv.org/content/10.6...
Amazing to see red blood cells moving through the gills! Don’t forget to check out the supplemental movies ;-)
December 2, 2025 at 10:48 PM
Exciting new #Zebrafish research from the #WeinsteinLab, led by Jong Park!
“Specialized gas-exchange endothelium of the zebrafish gill” —
www.biorxiv.org/content/10.6...
Amazing to see red blood cells moving through the gills! Don’t forget to check out the supplemental movies ;-)
“Specialized gas-exchange endothelium of the zebrafish gill” —
www.biorxiv.org/content/10.6...
Amazing to see red blood cells moving through the gills! Don’t forget to check out the supplemental movies ;-)
Reposted by Benjamin Kroeger
📣 I hereby make my Bluesky debut to announce that our work linking DNA binding affinities and kinetics 𝘪𝘯 𝘷𝘪𝘵𝘳𝘰 and 𝘪𝘯 𝘷𝘪𝘷𝘰 for the human transcription factor KLF1 just got published in Cell! @cp-cell.bsky.social
www.cell.com/cell/fulltex...
Key findings in a thread (1/6):
www.cell.com/cell/fulltex...
Key findings in a thread (1/6):
November 27, 2025 at 1:17 PM
📣 I hereby make my Bluesky debut to announce that our work linking DNA binding affinities and kinetics 𝘪𝘯 𝘷𝘪𝘵𝘳𝘰 and 𝘪𝘯 𝘷𝘪𝘷𝘰 for the human transcription factor KLF1 just got published in Cell! @cp-cell.bsky.social
www.cell.com/cell/fulltex...
Key findings in a thread (1/6):
www.cell.com/cell/fulltex...
Key findings in a thread (1/6):
Very interesting work from my dear friend, Fil! Congratulations to everyone involved in this excellent paper!
Modestly, we decided to review a century's worth of theories of balancing selection :) onlinelibrary.wiley.com/doi/10.1111/...
A century of theories of balancing selection
Traits that affect organismal fitness are often highly genetically variable. This genetic variation is vital for populations to adapt to their environments, but it is also surprising given that natur...
onlinelibrary.wiley.com
November 25, 2025 at 2:16 AM
Very interesting work from my dear friend, Fil! Congratulations to everyone involved in this excellent paper!
Reposted by Benjamin Kroeger
Motivational video for #MigrationMovieMonday. A persistent 4T1 breast cancer cell squeezing itself through a tight constriction despite undergoing repetitive nuclear envelope rupture. Credit: Kristen Nedza @weillinstitute.bsky.social
November 25, 2025 at 1:36 AM
Motivational video for #MigrationMovieMonday. A persistent 4T1 breast cancer cell squeezing itself through a tight constriction despite undergoing repetitive nuclear envelope rupture. Credit: Kristen Nedza @weillinstitute.bsky.social
Reposted by Benjamin Kroeger
What looked like a hearing organ on a tiny stinkbug’s leg turned out to be something far stranger: a fungal nursery that mother bugs use to coat their newly laid eggs in protective symbiotic hyphae, shielding their offspring from parasitic wasps.
Learn more in Science: https://scim.ag/4nDrDNm
Learn more in Science: https://scim.ag/4nDrDNm
![(A) An adult female in the field on Sicyos angulatus. (B) Back view of an adult female reared on cucumber, whose hindleg organs are covered with fungal hyphae (arrowheads). (C) Magnified image of the hindleg organ. (D to L) Morphology of hind tibia of adult male [(D) to (F)], immature adult female [(G) to (I)], and mature adult female [(J) to (L)]. [(D), (G), and (I)] Brightfield images. [(E), (H), and (K)] Scanning electron microscope (SEM) images. [(F), (I), and (L)] Magnified SEM images. (M to O) Peculiar behavior of egg-laying adult female. After laying each egg (M), the female rhythmically scratches the hyphae-covered hindleg organ with tarsal claws of the opposite hindleg (N) and then rubs the egg surface with the claws in a skillful manner (O). Also see movie S1. (P to R) Egg mass covered with fungal hyphae at 0-day (P), 3-day (Q), and 10-day (R) intervals after oviposition. Reddish color of 10-day eggs reflects the body color of developing nymphs inside.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:vqgovau5gkirnk3ss5qwjdmz/bafkreiatozcclrv3q5pr2susooiojtvkwr6kwnd22hwxh3ijzh7lpi276q@jpeg)
November 1, 2025 at 9:14 PM
What looked like a hearing organ on a tiny stinkbug’s leg turned out to be something far stranger: a fungal nursery that mother bugs use to coat their newly laid eggs in protective symbiotic hyphae, shielding their offspring from parasitic wasps.
Learn more in Science: https://scim.ag/4nDrDNm
Learn more in Science: https://scim.ag/4nDrDNm
Reposted by Benjamin Kroeger
@lucianomartelotto, not on Bluesky, on a new Spatial RNA imaging method, PRISM. www.nature.com/articles/s41... Now added to #SingleCell #Spatial #Method bit.ly/scmethodstable
High-plex spatial RNA imaging in one round with conventional microscopes using color-intensity barcodes - Nature Biotechnology
The 64-plex fluorescence imaging of RNA in tissues is achieved in one imaging cycle
www.nature.com
October 31, 2025 at 10:08 AM
@lucianomartelotto, not on Bluesky, on a new Spatial RNA imaging method, PRISM. www.nature.com/articles/s41... Now added to #SingleCell #Spatial #Method bit.ly/scmethodstable
Reposted by Benjamin Kroeger
A new, nerdy paper. We figured out (some) of the rules underlying cell-permeability of probes and designed ligands that light up, grab, and move proteins around. Awesome @hhmijanelia.bsky.social x @uwmadison.bsky.social x @stjuderesearch.bsky.social collaboration! www.pnas.org/doi/10.1073/...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
October 27, 2025 at 9:43 PM
A new, nerdy paper. We figured out (some) of the rules underlying cell-permeability of probes and designed ligands that light up, grab, and move proteins around. Awesome @hhmijanelia.bsky.social x @uwmadison.bsky.social x @stjuderesearch.bsky.social collaboration! www.pnas.org/doi/10.1073/...
Reposted by Benjamin Kroeger
Perspective from Richard McIntosh describing the history of research on #microtubule polymerization in terms of the ideas, technologies, and observations that have emerged as countless researchers have studied the dynamics of these essential cytoskeletal polymers. rupress.org/jcb/article/...
October 15, 2025 at 4:02 PM
Perspective from Richard McIntosh describing the history of research on #microtubule polymerization in terms of the ideas, technologies, and observations that have emerged as countless researchers have studied the dynamics of these essential cytoskeletal polymers. rupress.org/jcb/article/...
Reposted by Benjamin Kroeger
Latest from ours: www.cell.com/cell-reports...
This is two stories in one: a case study/cautionary tale on developing genetic tools in new organisms, and the first hint at a gene regulatory network for choanoflagellate multicellular development (which turn out to involve a Hippo/YAP/ECM loop!) A 🧵
This is two stories in one: a case study/cautionary tale on developing genetic tools in new organisms, and the first hint at a gene regulatory network for choanoflagellate multicellular development (which turn out to involve a Hippo/YAP/ECM loop!) A 🧵
October 5, 2025 at 10:35 AM
Latest from ours: www.cell.com/cell-reports...
This is two stories in one: a case study/cautionary tale on developing genetic tools in new organisms, and the first hint at a gene regulatory network for choanoflagellate multicellular development (which turn out to involve a Hippo/YAP/ECM loop!) A 🧵
This is two stories in one: a case study/cautionary tale on developing genetic tools in new organisms, and the first hint at a gene regulatory network for choanoflagellate multicellular development (which turn out to involve a Hippo/YAP/ECM loop!) A 🧵
Reposted by Benjamin Kroeger
We present multi-immersion Oblique Plane microscope (miOPM), a light-sheet platform that can be adapted to a wide range of applications, from sensitive live cell imaging to imaging organs and cleared tissues.
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
October 6, 2025 at 5:52 PM
We present multi-immersion Oblique Plane microscope (miOPM), a light-sheet platform that can be adapted to a wide range of applications, from sensitive live cell imaging to imaging organs and cleared tissues.
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reposted by Benjamin Kroeger
See this? This = implanting mouse embryo. Usually this happens inside its mother and is invisible to us, but we can actually watch implantation ex vivo with the hope of understanding why implantation goes awry in embryos of older women. A 🧵...
October 1, 2025 at 6:21 PM
See this? This = implanting mouse embryo. Usually this happens inside its mother and is invisible to us, but we can actually watch implantation ex vivo with the hope of understanding why implantation goes awry in embryos of older women. A 🧵...
Reposted by Benjamin Kroeger
Now out on bioRxiv. 🥳My research on #cytokinesis, averaging thousands of #ExM images🔬, creating a dynamic atlas of cytokinesis 🦠⏳. Here's an animated sneak peek of what we found. Better resolution on bioRxiv😄 #PSFoftheGIF
September 28, 2025 at 2:15 PM
Now out on bioRxiv. 🥳My research on #cytokinesis, averaging thousands of #ExM images🔬, creating a dynamic atlas of cytokinesis 🦠⏳. Here's an animated sneak peek of what we found. Better resolution on bioRxiv😄 #PSFoftheGIF
Reposted by Benjamin Kroeger
Up to 9-channel (3x3 colors) imaging using engineering fluorescent proteins (mTurquoise, mNeonGreen, mScarlet) with distinct lifetimes 🌈😎 🧪
www.cell.com/cell/abstrac...
www.cell.com/cell/abstrac...
September 23, 2025 at 7:57 AM
Up to 9-channel (3x3 colors) imaging using engineering fluorescent proteins (mTurquoise, mNeonGreen, mScarlet) with distinct lifetimes 🌈😎 🧪
www.cell.com/cell/abstrac...
www.cell.com/cell/abstrac...
Reposted by Benjamin Kroeger
Congrats to my friends in the Boettiger lab for this really beautiful live imaging work. A big leap forward in understanding the dynamic side of genome organization. www.science.org/doi/10.1126/...
Kinetic organization of the genome revealed by ultraresolution multiscale live imaging
Genome function requires regulated genome motion. However, tools to directly observe this motion in vivo have been limited in coverage and resolution. Here we introduce an approach to tile mammalian c...
www.science.org
September 19, 2025 at 6:20 AM
Congrats to my friends in the Boettiger lab for this really beautiful live imaging work. A big leap forward in understanding the dynamic side of genome organization. www.science.org/doi/10.1126/...
Reposted by Benjamin Kroeger
A bit delayed, but excited to still share our latest paper, showing that intercellular forces transduced by E-cadherin activate EGFR-ERK signaling in epithelia by inducing EGFR ligand shedding! Mechanical and biochemical signals can act together within a single, linear cascade! tinyurl.com/mr9mj9j2
E-cadherin mechanotransduction activates EGFR-ERK signaling in epithelial monolayers by inducing ADAM-mediated ligand shedding
Epithelial stretching promotes the release of EGF receptor ligands that stimulate ERK activation.
tinyurl.com
September 13, 2025 at 6:05 PM
A bit delayed, but excited to still share our latest paper, showing that intercellular forces transduced by E-cadherin activate EGFR-ERK signaling in epithelia by inducing EGFR ligand shedding! Mechanical and biochemical signals can act together within a single, linear cascade! tinyurl.com/mr9mj9j2
Reposted by Benjamin Kroeger
We are all super happy and proud to see our work on the function and evolution of the #cephalic #furrow published in @nature.com. Let me say a few things about the background and history of this work on the #Evolution_of_Morphogenesis (1/12)
September 4, 2025 at 8:22 AM
We are all super happy and proud to see our work on the function and evolution of the #cephalic #furrow published in @nature.com. Let me say a few things about the background and history of this work on the #Evolution_of_Morphogenesis (1/12)
Reposted by Benjamin Kroeger
One more movie!
Using the RL algorithm (from pnas.org/doi/10.1073/...),
@masaashimazoe.bsky.social analyzed our nucleosome tracking data and classified them by their mobility.
Hotter color = faster motion (Slow🔵→ 🟢 → 🟡 → 🟠 Fast)
Using the RL algorithm (from pnas.org/doi/10.1073/...),
@masaashimazoe.bsky.social analyzed our nucleosome tracking data and classified them by their mobility.
Hotter color = faster motion (Slow🔵→ 🟢 → 🟡 → 🟠 Fast)
August 29, 2025 at 12:36 AM
One more movie!
Using the RL algorithm (from pnas.org/doi/10.1073/...),
@masaashimazoe.bsky.social analyzed our nucleosome tracking data and classified them by their mobility.
Hotter color = faster motion (Slow🔵→ 🟢 → 🟡 → 🟠 Fast)
Using the RL algorithm (from pnas.org/doi/10.1073/...),
@masaashimazoe.bsky.social analyzed our nucleosome tracking data and classified them by their mobility.
Hotter color = faster motion (Slow🔵→ 🟢 → 🟡 → 🟠 Fast)
Reposted by Benjamin Kroeger
Fine structural organization of the interphase nucleus in some mammalian cells, Monneron & Bernard, 1969
Gotta love these classic papers about nuclear architecture. In hindsight, all that we understand and discover today was already contained in their images.
www.sciencedirect.com/science/arti...
Gotta love these classic papers about nuclear architecture. In hindsight, all that we understand and discover today was already contained in their images.
www.sciencedirect.com/science/arti...
August 31, 2025 at 3:41 PM
Fine structural organization of the interphase nucleus in some mammalian cells, Monneron & Bernard, 1969
Gotta love these classic papers about nuclear architecture. In hindsight, all that we understand and discover today was already contained in their images.
www.sciencedirect.com/science/arti...
Gotta love these classic papers about nuclear architecture. In hindsight, all that we understand and discover today was already contained in their images.
www.sciencedirect.com/science/arti...
Reposted by Benjamin Kroeger
Giraffes, long considered a single species, are in fact four. https://scim.ag/4n2po6f
Giraffes are four distinct species, major report confirms
The revised classification will help ensure different giraffe populations are adequately protected, conservationists say
scim.ag
August 31, 2025 at 7:32 PM
Giraffes, long considered a single species, are in fact four. https://scim.ag/4n2po6f
Reposted by Benjamin Kroeger
Vote now in our image competition with the 2025 @mblscience.bsky.social Embryology course!
Check out these stunning images and pick your favourite: thenode.biologists.com/vote-for-you...
#FluorescenceFriday
Check out these stunning images and pick your favourite: thenode.biologists.com/vote-for-you...
#FluorescenceFriday
Vote for your favourite image from the MBL Embryology course - the Node
Browse through the gallery of the 20 images and vote for your favourite by Wednesday 3 September.
thenode.biologists.com
August 22, 2025 at 4:06 PM
Vote now in our image competition with the 2025 @mblscience.bsky.social Embryology course!
Check out these stunning images and pick your favourite: thenode.biologists.com/vote-for-you...
#FluorescenceFriday
Check out these stunning images and pick your favourite: thenode.biologists.com/vote-for-you...
#FluorescenceFriday
Reposted by Benjamin Kroeger
Striking new study from @archaeon-alex.bsky.social's lab just out in @science.org on multicellular development induced by compression in Archaea: www.science.org/doi/10.1126/...
Tissue-like multicellular development triggered by mechanical compression in archaea
The advent of clonal multicellularity is a critical evolutionary milestone, seen often in eukaryotes, rarely in bacteria, and only once in archaea. We show that uniaxial compression induces clonal mul...
www.science.org
April 3, 2025 at 6:24 PM
Striking new study from @archaeon-alex.bsky.social's lab just out in @science.org on multicellular development induced by compression in Archaea: www.science.org/doi/10.1126/...
Reposted by Benjamin Kroeger
Is euchromatin really “open”? Our new study @bioRxiv suggests otherwise. Using super-resolution imaging @shiori-iida.bsky.social @masaashimazoe.bsky.social reveals: Euchromatin forms condensed domains in live cells. Cohesin constrains them and prevents domain mixing.
www.biorxiv.org/cgi/content/...
www.biorxiv.org/cgi/content/...
August 28, 2025 at 4:18 AM
Is euchromatin really “open”? Our new study @bioRxiv suggests otherwise. Using super-resolution imaging @shiori-iida.bsky.social @masaashimazoe.bsky.social reveals: Euchromatin forms condensed domains in live cells. Cohesin constrains them and prevents domain mixing.
www.biorxiv.org/cgi/content/...
www.biorxiv.org/cgi/content/...
Reposted by Benjamin Kroeger
Supracellular control and coordination of tissue morphogenesis, through supracellular actomyosin assemblies, that is what my lab @cellbiol-mrclmb.bsky.social @pdncambridge.bsky.social and I like to dig into at the moment! Fascinating and beautiful! journals.biologists.com/dev/article/...
August 27, 2025 at 12:33 PM
Supracellular control and coordination of tissue morphogenesis, through supracellular actomyosin assemblies, that is what my lab @cellbiol-mrclmb.bsky.social @pdncambridge.bsky.social and I like to dig into at the moment! Fascinating and beautiful! journals.biologists.com/dev/article/...
Reposted by Benjamin Kroeger
Our latest: We developed a chemo-optogenetic system for precise spatiotemporal control of morphogen production. Using dual light + small molecule control of Sonic Hedgehog production, we recapitulated neural tube patterning in vitro & measured spread of Shh
🧵
www.sciencedirect.com/science/arti...
🧵
www.sciencedirect.com/science/arti...
Investigating morphogen and patterning dynamics with optogenetic control of morphogen production
Morphogen gradients provide the patterning cues that instruct cell fate decisions during development. Here, we establish an optogenetic system for the…
www.sciencedirect.com
August 26, 2025 at 8:28 AM
Our latest: We developed a chemo-optogenetic system for precise spatiotemporal control of morphogen production. Using dual light + small molecule control of Sonic Hedgehog production, we recapitulated neural tube patterning in vitro & measured spread of Shh
🧵
www.sciencedirect.com/science/arti...
🧵
www.sciencedirect.com/science/arti...
Reposted by Benjamin Kroeger
🧬🔬🧪 🎉 Our team at @czbiohub is thrilled to share TWO companion papers out today in @NatureMethods!
📦 Ultrack — robust, scalable nD cell tracking
🌐 inTRACKtive — a beautiful, open-source web viewer for lineage exploration
Let’s dive in! 👇
www.nature.com/articles/s41...
www.nature.com/articles/s41...
📦 Ultrack — robust, scalable nD cell tracking
🌐 inTRACKtive — a beautiful, open-source web viewer for lineage exploration
Let’s dive in! 👇
www.nature.com/articles/s41...
www.nature.com/articles/s41...
August 25, 2025 at 9:06 AM
🧬🔬🧪 🎉 Our team at @czbiohub is thrilled to share TWO companion papers out today in @NatureMethods!
📦 Ultrack — robust, scalable nD cell tracking
🌐 inTRACKtive — a beautiful, open-source web viewer for lineage exploration
Let’s dive in! 👇
www.nature.com/articles/s41...
www.nature.com/articles/s41...
📦 Ultrack — robust, scalable nD cell tracking
🌐 inTRACKtive — a beautiful, open-source web viewer for lineage exploration
Let’s dive in! 👇
www.nature.com/articles/s41...
www.nature.com/articles/s41...