Health: Chemical Signals Spread Cancer

Society | December 9, 2005, Friday // 00:00

US scientists say they have discovered how tumours control the development of secondary cancers in the body.

Writing in Nature, they say primary tumours emit chemical signals. These make the target sites for secondary tumours sticky and direct bone marrow cells to them to secure a foothold for arriving tumour cells.

New York's Cornell University used antibodies to block bone marrow cells' migration in mice, and believe their work could help humans.

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