New imaging technique that can spot tumour cells most likely to spread around the body
Metastasis, the ability of cancerous cells to spread to other organs, is the reason why cancer is so deadly, and an enduring puzzle for cancer research. Yet not all tumours metastasise, and not all cells in aggressive cancers develop this most dangerous property, so being able to identify and monitor high-risk cells would be a significant breakthrough. To that aim, researchers have recently developed a new imaging technique, to spot cells with a high metastatic potential. By comparing healthy and cancerous tissues, they identified a key marker of metastasis, the modification of a signalling protein known as GIV/Girdin, then developed biosensors to detect it. In the breast cancer cell here, green, orange and red fluorescence indicates the presence of modified Girdin, and a high metastatic potential. Though still far from clinical applications, this type of sensor could eventually measure the risk of metastasis for patients, helping to personalise their treatment.
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