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Cell scaffold microtubules regulate tissue macrophages' migration & other roles as they participate in epithelial surveillance & wound repair

18 June 2026

Heading for Trouble

Navigating your way through a dense crowd of people requires both physical strength and a bit of guile. Immune cells patrolling the tightly-packed cells of the skin face a similar challenge. Researchers examined how they do it, studying the role of microtubules – part of the cell skeleton that acts as both scaffold and internal transport network. They compared the behaviour of Langerhans cells, immune cells in the skin, under normal conditions to when their microtubule network was disrupted. They found that microtubules are crucial for navigation, rather than movement alone (pictured, blue Langerhans cells migrating towards a wound under normal conditions, 0–10s, and moving more aimlessly after microtubules are destabilised by a drug, 10–20s). The microtubule network acts as a steering and support system, helping immune cells keep their shape, clear debris, and find their way towards trouble.

Written by Anthony Lewis

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BPoD stands for Biomedical Picture of the Day. Managed by the MRC Laboratory of Medical Sciences until Jul 2023, it is now run independently by a dedicated team of scientists and writers. The website aims to engage everyone, young and old, in the wonders of biology, and its influence on medicine. The ever-growing archive of more than 4000 research images documents over a decade of progress. Explore the collection and see what you discover. Images are kindly provided for inclusion on this website through the generosity of scientists across the globe.

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