Ever had that sense of trying to keep up with someone but never quite catching them? It’s a feeling that cancer cells are all too familiar with. During metastasis, cancer cells move around by detaching from the tumour’s original site and sticking to other healthy cells around the body. New research shows that cancer cells can gain this ability to roam by ‘chasing’ normal cells. Neural crest cells – embryonic cells that are normal but, like cancer cells, can migrate – and immature nerve cells were used as stand-ins for malignant and healthy cells, respectively. Rather like cats chasing an unravelling ball of string, the ‘cancer cells’ (shown as grey beads) are enticed by signals from the ‘molecular string’ the ‘healthy cells’ (red cluster) release. Once the ‘cancer cells’ start to catch up, the ‘healthy cells’ escape just in time. Blocking this interaction could be used as a possible future cancer therapy.
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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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