Cells can sense 10x farther than expected and it may explain cancer spread

The fairy tale of the princess and the pea tells of a young royal so sensitive she could detect a tiny pea hidden beneath many mattresses. In biology, something similar happens when a cell senses conditions far beyond what it directly touches. Until recently, this remarkable ability was mostly linked to unusual cells such as cancer cells. New research shows that ordinary cells can achieve a similar feat when they work together.

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