MicroRNA's role in breast cancer metastasis identified

A microRNA called miR-105 helps cancer metastasize by breaking down the building blocks of blood vessels' barriers, allowing the cancer cells to enter the bloodstream, researchers have found. "MicroRNAs were discovered over two decades ago, but it's only recently that the scientific community started looking into their role in cancer," said the senior author of the study. "When we found out that cancer cells can make and secrete microRNAs, we wanted to investigate their role in interactions betw...