Rachael Ott

Geng, @kjverhey1.bsky.social et al find that KIF1C forms condensates where the exposed #kinesin motor domains entangle nearby #microtubules, causing them to bend & break in a process dependent on motor processivity, cluster properties, cytoplasmic viscosity, & MT anchors rupress.org/jcb/article/...

What would happen if cells would express more molecular motors ?
They would break all microtubules 😱
As shown by recent great work from @kjverhey1.bsky.social

rupress.org/jcb/article-...

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...

Playing around with @kwolbachia.bsky.social 's LUT manager plugin. Absolutely love the campfire LUT🔥 😍#microtubulemonday

This is incredibly beautiful, and the fact that the resolution is sufficient to follow the path of DNA spooling inside the virion head and through the tail is amazing

Thank you Anna!

RhoA (blue) and the actin cytoskeleton (magenta) are shown in a set of primary microglia.

For #FluorescenceFriday, RhoA (blue) and the actin cytoskeleton (magenta) are shown in a set of primary microglia 🔬 #Neuroscience #Microscopy

Thank you Shweta! 😄

Figure from our review paper showing various fluorescence microscopy images of cells and structures of the kidney

Sharing this excellent review now out from postdoc Sarah McLarnon! Lots of useful info on 3D imaging, quantification of imaging data, and how this has been applied to the kidney. And since it's #FluorescenceFriday, sharing a figure with our own imaging data!
www.sciencedirect.com/science/arti...

smFISH for immediate early gene Fos in a section of the mouse hippocampus

For #FluorescenceFriday - simple image, but structure of hippocampus is beautiful with additional fanfare. 🟢 is Fos - labeling cells that get activated in response to disinhibition of inhibitory neuron subpopulation in the prefrontal cortex. Image credit to JHU Neuroscience student Aaron Salisbury.

Confocal microscopy photo showing neurons and microglia

👻 "Dark Forest Within" 🧠
What if the brain is a creepy forest? Our neurons are the 🌲, old (as old as we are!), and without mobility. Suddenly, comes the microglia, our brain's immune cells. Everything lights up when they move around.
🟢microglia🟣neurons
#FluorescenceFriday 🎃

I’m happy to share some plugins I’ve been developping this summer: "Channels and Contrast" and LUTs Manager!
I can’t find new bugs and ideas by now so I need your help to please test them in your machines and report bugs, feedbacks and ideas! forum.image.sc/t/looking-fo...

Looks awesome! I can’t wait to try it out 🤩

Thank you! It’s a Santa Cruz antibody (26C4), diluted 1:200, and left overnight :)

Thanks for sharing Leah! 😁

Thank you! 😄

RhoA (blue) and the actin cytoskeleton (magenta) are shown in a set of primary microglia.

For #FluorescenceFriday, RhoA (blue) and the actin cytoskeleton (magenta) are shown in a set of primary microglia 🔬 #Neuroscience #Microscopy

Mario Ledesma-Terrón, Diego Pérez-Dones, David Míguez and colleagues @cbm-csic-uam.bsky.social @ifimacuam.bsky.social present OSCAR, a framework to quantify 3D stacks with high cellular density.
journals.biologists.com/jcs/article-...

Nanotubes everywhere between neurons! A bit skeptical about these "dendrite-dendrite nanotubes" from a phalloidin staining in culture, but let's read on… www.science.org/doi/10.1126/...

Easily my new favorite image of yours!! Awesome work Maik!!

My entry for today’s #FluorescenceFriday: a pupal #Drosophila testis with muscles expressing
🔵 lifeact &
🔴 RFP-nls

Honored & grateful to receive an honorable mention at @healthcare.nikon.com Nikon Small World 🌍🔬✨

🔗 www.nikonsmallworld.com/galleries/20...

#NikonSmallWorld #Microscopy #ScienceArt

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 🧵...

Towards a unified framework for the function of endoplasmic reticulum exit sites - Nature Reviews Molecular Cell Biology Endoplasmic reticulum exit sites (ERES) are specialized ER subdomains that regulate the export of secreted cargo. This Roadmap explores how ERES integrate biochemical and mechanical signals to coordinate trafficking and proposes a multidisciplinary strategy to investigate their function, including in disease.

ER exit sites are dynamic ER subdomains that integrate signals, reshape membranes and steer secretion. Twelve groups in the field came together to map their diversity, regulation, unanswered questions and future directions.
www.nature.com/articles/s41...

You're watching 12 hrs of live cell imaging compressed into a GIF.

A multi-nucleated mouse pre-adipocyte tries to undergo mitosis, triggers a checkpoint because it has too much DNA, & undergoes apoptosis.

The last stage is called "blebbing", which is wonderfully descriptive.

(🔬: NanoLive Imaging)

Time for a thread!🧵 How different is the molecular organization of thylakoids in “higher” plants🌱? To find out, we teamed up with @profmattjohnson.bsky.social to dive into spinach chloroplasts with #CryoET ❄️🔬. Curious? ..Read on!

#TeamTomo #PlantScience 🧪 🧶🧬 🌾
elifesciences.org/articles/105...
1/🧵

Comparing single-cell #SpatialTranscriptomics methods on FFPE human tumor #TissueMicroArray

CosMx 1k vs MERFISH 500 vs Xenium-UM/-MM 339
93 common genes

lung adenocarcinoma
pleural mesothelioma

Corr. Bulk RNAseq, GeoMx

#NatureComms 2025
www.nature.com/articles/s41...

A blood vessel in the brain for #FluorescenceFriday! Why am I looking at these in the microscope? (1/3)

Absolutely stunning image! 🤩

Image of a fluorescently labeled adult mouse kidney showing AQP2 staining of collecting ducts and connecting segment in green and alpha SMA staining of the arterial tree in magenta. The collecting ducts look like squiggly branches.

For this #FluorescenceFriday, a gorgeous image of an adult mouse kidney labeled with AQP2 and alpha SMA antibodies. AQP2 (green) marks the collecting duct and distal connecting segment while SMA marks the arterial tree. Courtesy of talented postdoc Sarah McLarnon.

#FluorescenceFriday: getting ready for #GEF25, playing with Ciarán's stunning ExM data