Breast cancer is a prevalent disease with known clinical and molecular diversity. To address these challenges, my research team uses a multidisciplinary approach based upon genomics, genetics, cancer biology, bioinformatics, epidemiology, and clinical research to improve the outcomes of cancer patients. A major contribution of mine has been the discovery of the intrinsic subtypes of breast cancer. We demonstrated that breast cancers can be divided into at least five molecular subtypes using the “PAM50” assay, with my lab focusing particular attention on the Basal-like subtype, which represents ~80% of Triple Negative Breast Cancers. In addition, we have translated these molecular classifications into the human population; specifically, by using the Carolina Breast Cancer Study (CBCS), we have found that young African American (AA) women are diagnosed with Basal-like Breast Cancers approximately twice as often as their Caucasian counterparts. These results provide a partial explanation of the racial outcomes disparity in the USA between AAs and Caucasians; however, additional studies are needed and are an emphasis of our ongoing research.