Malina Iwanski
@mkiwanski.bsky.social
130 followers 150 following 11 posts
Postdoc in the Pigino Lab @ HT. I enjoy long walks along microtubules and missing the sunset because I’m behind a microscope. She/her. Eng/Ned/Deu.
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Reposted by Malina Iwanski
ssp2025.bsky.social
Time to get signed up for the Symposium on Structural Proteomics! This time at @humantechnopole.bsky.social in Milan 6th-8th October Full speaker lineup announced. Thanks to @thermofishersci.bsky.social @brukercorporation.bsky.social, Affipro and MSVision for support
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ssp2025.squarespace.com
mkiwanski.bsky.social
Wow 😍 This is so impressive!
mkiwanski.bsky.social
Of course team work makes the dream work and none of this would have been possible without Albert, Lukas, and two of my incredible Masters students, Noor and Bronte! 💜
mkiwanski.bsky.social
But wait - did you spot the instances of stable microtubule orientation reversal in this cell?
mkiwanski.bsky.social
We could even follow the fates of individual stable microtubules in these young neurons over the course of hours using StableMARK 😍
mkiwanski.bsky.social
Remarkably, we found that stable microtubules are initially anchored at the centrioles and oriented plus-end-out in early neurites. They are then released from the centrioles, allowing them to reverse their polarity by sliding to adopt the minus-end-out orientation seen in mature dendrites.
mkiwanski.bsky.social
And expansion microscopy let us precisely map the networks of acetylated (orange) and tyrosinated (blue) microtubules in these early neurites and near the centrioles!
mkiwanski.bsky.social
Check it out for some beautiful super-resolution reconstructions of the microtubule networks in developing neurons! Using motor-PAINT, we can colour-code microtubules by their orientation to see how this changes during development. Cyan: plus-end-out (away from soma). Magenta: plus-end-in.
Reposted by Malina Iwanski
jpassmore.bsky.social
Advances in microscopy mean we can now do more than just observe biology—we can control it. But how far can we really push this in mammalian cells with all their (beautiful but annoying) heterogeneity? 🧪🔬(🧵)
HT1080 cells with various morphologies. DAPI (blue) Phalloidin (grey) GM130 (green).
mkiwanski.bsky.social
Hi folks! Lots of things changed in my life recently (!) but mainly (1) I finished my PhD in the lab of Lukas Kapitein focusing on microtubule stability and orientation in neurons and (2) I moved to Milan to start my postdoc with Gaia Pigino on tubulin post-translational modifications in cilia.