**About the Special Issue Editor**

**Kenichiro Ishii** is an assistant professor of the Department of Oncologic Pathology at Mie University Graduate School of Medicine, Japan. After he earned a Ph.D. in 2001 from Gifu Pharmaceutical University, he completed a postdoctoral fellowship at the Department of Urologic Surgery, Vanderbilt University Medical Center, USA. His current focus is on role of fibroblasts in prostate cancer progression.
