Guy Joseph Lemamy, PhD, is currently a Professor at the Department of Cellular and Molecular Biology-Genetics, and Director of the Laboratory of Cellular and Molecular Pathobiology, at the Faculty of Medicine, Université des Sciences de la Santé (USS), Libreville, Gabon. Dr Lemamy obtained his PhD in Biochemistry and Cell Biology at the Faculty of Medicine, Université Montpellier, France. His PhD thesis concerned the search for new tumor markers in breast cancer led by Medical Research Institute (INSERM U148) in Montpellier, France. Dr Lemamy is the author of many book chapters and journal articles about tumor markers and is involved in other scientific activities. He is also a Member of Scientific Advisory Board of Gabon Scientific Research Guiding Plan.