Spread of aggressive breast cancer suppressed by RNA snippet

According to an article on Physorg a new study shows that high levels of a tiny fragment of RNA appear to suppress the spread of breast cancer in mice according to researchers at Whitehead Institute for Biomedical Research. Measuring levels of this so-called microRNA, which is also associated with metastatic breast cancer in humans, may more accurately predict the likelihood of metastasis (which accounts for 90 percent of cancer-related deaths) and ultimately help determine patient outcomes.

Abnormal, uncontrolled cell division resulting in a malignant tumour that may invade surrounding tissues or spread to distant parts of the body. Full medical glossary
The spread of a malignant tumour to other parts of the body. Full medical glossary