Krassimira Olegova Todorova received two master's degrees in pedagogics, biology and chemistry and cell biology and developmental biology, from the Sofia University "St. Kliment Ohridsky", Bulgaria, and a Ph.D. in immunology from the Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia. She was a postdoctoral fellow at the Harvard Cutaneous Biology Research Center, Massachusetts General Hospital. She is currently an associate professor in immunology and head of the Laboratory of Reproductive OMICs Technologies at the Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia. She is a project lead on miR-204 effects in gene-regulation in prostate cancer and its role for transcription factors regulation and cancer fusion events modulation. Her research interests include tumor cell biology and tumor angiogenesis; stem cell/progenitor cell involvement in cancer development; DNA vaccines, humoral and cellular immune response; cell imaging; cytogenetics; and immunology.