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Immune cells play key role in early breast cancer metastasis even before a tumor develops

In In The News by Barbara Jacoby

Source: The Mount Sinai Hospital / Mount Sinai School of Medicine From: Mount Sinai researchers have discovered that normal immune cells called macrophages, which reside in healthy breast tissue surrounding milk ducts, play a major role in helping early breast cancer cells leave the breast for other parts of the body, potentially creating metastasis before a tumor has even …