Michael Johnson, PhD, is an Associate professor of Oncology at Georgetown University. His research Interests are proteases, invasion and metastasis and the progression of breast cancer. He also focuses on the pharmacogenetics of drugs used in cancer therapy. Dr. Johnson received his BSc and PhD in Biochemistry from the University of Newcastle upon Tyne, UK. He completed a postdoctoral fellowship in Cancer Biology at the Lombardi Cancer Center at Georgetown University.