Abstract
Triple-negative breast cancer (TNBC) is the most invasive among all subtypes, and 46% of patients have metastasis reducing their survival rate. To metastasize, tumor cells need to separate from the tissue of origin and reach the circulation, becoming circulating tumor cells (CTCs). CTCs then need to survive and colonize metastatic sites. In the case of brain metastasis, TNBC cells, in add…