Spread of aggressive breast cancer suppressed by RNA snippet

According to this article on Physorg a new study shows that high levels of a tiny fragment of RNA appear to suppress the spread of breast cancerAbnormal, uncontrolled cell division resulting in a malignant tumour that may invade surrounding tissues or spread to distant parts of the body. 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 metastasisThe spread of a malignant tumour to other parts of the body. (which accounts for 90 percent of cancer-related deaths) and ultimately help determine patient outcomes.