These skin cancer cells show from a mouse, an animal commonly used to study human diseases (including many types of cancer) and to test the effectiveness of drugs. The two cells contained here are linked by actin (green), a cell skeleton protein. Although actin is required by many cells for normal movement, it also allows cancer cells to spread to other parts of the body.

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Photo credit: © NIH / IMAGE POINT FR / BSIP / Alamy / Afripics
License: Licensed
Model Released: No

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