Dr. Hostetter received his M.D. from the University of Pennsylvania in 1993. He is board certified in pathology and his research throughout the past 15 years has focused on colorectal cancer and spans a range of genomic and protein-based assays for molecular characterization of clinical samples. He was a staff pathologist at TGen from 2003 to 2011 and directed the Tissue Microarray (TMA) service center and pathology services. He supports basic science research through the validation of candidate biomarkers using a range of clinical derived materials, including cell lines, fresh frozen or paraffin tissues. His laboratory also qualified clinical samples for downstream DNA, RNA species and protein applications.