In journey from maggot to fruit fly, a clue about cancer metastasis

Scientists trying to understand how cancer cells invade healthy tissue have used the fruit fly's metamorphosis from maggot to flying insect as a guide to identify a key molecular signal that may be involved in both processes. The researchers identified a molecule key to determining how cells invade and create new tissues. That process is what makes cancer so deadly and equally difficult to understand and interrupt.

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