Kai Murk
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kaimurk.bsky.social
Kai Murk
@kaimurk.bsky.social
Cell & Neurobiologist. Group Leader & Lecturer at the Institute of Biochemistry, Charité Berlin. Research interest in the actin cytoskeleton and membrane trafficking in astrocytes.
#microscopymonday video on a multitalented housekeeper in the #brain: Watch amidst #neurons an #astrocyte. The astrocyte phagocytoses debris but is rather stationary compared to the bypassing #microglia cell. #Neurons thrive around the astrocyte and outgrow neurites.
October 19, 2025 at 5:32 PM
This #microscopymonday is a cleaning day. Watch how a #microglia cell mops up and phagozytoses debris and junk in a very messy neuronal co-culture. BTW, it was a proper cleaning job → the neurons made it and formed nice networks
Phase contrast imaging started at DIV1. One frame per 20 min.
October 12, 2025 at 4:32 PM
Something for a belayed #FluorescentFriday. #actin dynamics in differentiating neuroblastoma cells. 'It's fascinating to observe the dynamics of #actin in growth cones and filopodia, even though it's merely GFP-actin.
CSU-W1 SoRa Spinning disk #microscopy performed at the AMBIO facility (Charité).
October 4, 2025 at 9:09 AM
A glimpse on the membrane trafficking part.
May 12, 2025 at 6:48 PM
For this #FluorescenceFriday: Cortical rat astrocyte in situ expressing the #actin filament reporter Lifeact-GFP. Actin filament illumination reveals the Christmas tree-like arborization and the massive endfoot around a cerebral blood vessel. Tissue clearing, sp8 Leica confocal & Imaris were used.
December 20, 2024 at 12:07 PM
Here my #FluorescenceFriday contribution, which links my #astrocytes and live imaging starter groups, showing the leading edge of a Drebrin-KO astrocyte: acute Arp2/3 inhibition turns accumulating membrane (green) into tubules. Microtubules in magenta. Published in www.nature.com/articles/s41...
November 22, 2024 at 3:20 PM