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- Copyright : SPL / BSIP
- Collection : Science Photo Library
- Model release : Sans objet
- Property release : Sans objet
- Autorisations : Toute utilisation
Légende : Metastasis of a cancerous cell. Coloured scanning electron micrograph (SEM) of a tumour cell, showing pseudopodia protrusions (bottom left and right), a prominent feature of actively motile cells. The role of pseudopodia in metastasis (the spread of cancer cells around the body) is poorly understood but it appears that a protein, named autocrine motility factor (AMF), causes pseudopodia to extend prior to cell translocation. Locomotion is integral to the entire process of metastasis.