MedicalResearch.com Interview with: Takemi Tanaka, Ph. D. Professor, Stephenson Cancer Center Department of Pathology, School of Medicine University of Oklahoma Health Science Center MedicalResearch.com: What is the background for this study? Response: Our previous cohort study has shown that breast cancer progresses 60 days after diagnostic biopsy in early-stage ER+ breast cancer. Others have also reported increased breast cancer mortality due to surgery delay. These observations raised the question of how slow-growing ER+ breast cancer progresses so quickly in just 60 days following diagnosis, prompting us to hypothesize whether needle biopsy of breast tumors accelerates pro-metastatic changes. (more…)