Marc G. Denis is Professor of Biochemistry and Molecular Biology at Nantes University Hospital (France). He received a Pharm D degree in Nantes in 1984 and a PhD degree in Medical Sciences from the Karolinska Institute (Stockholm University, Sweden) in 1989. He is now head of the Department of Biology, Nantes University Hospital, and conducts his research projects in INSERM unit 1302 (Immunology and New Concepts in Immunotherapy). Dr. Denis is also in charge of the local platform for tumor molecular biology, funded by the French National Cancer Institute (INCa). He is particularly involved in molecular testing of lung tumors, colorectal tumors and melanoma. Current effort is focused on tumor characterization, evaluation of kits for molecular testing and detection of molecular alterations in circulating DNA. Dr. Denis is a member of the American Association for Cancer Research, of the European Society for Medical Oncology and of the American Society of Clinical Oncology. He has authored over 150 publications in peer-reviewed international journals.