Guy Joseph Lemamy, PhD, is currently General Manager of High Institute of Medical Biology at University of Health Sciences, in Libreville, Gabon (Institut Supérieur de Biologie Médicale de L'Université des Sciences de la Santé) Professor at the Department of Cellular and Molecular Biology-Genetics, he also leads the Laboratory of Cellular and Molecular Pathobiology. Dr Lemamy obtained his PhD in Biochemistry and Cell Biology at the Faculty of Medicine, Université Montpellier, France. His PhD thesis concerned the research 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 in his country Gabon. He is a Member of Scientific Advisory Board of Gabon Scientific Research Guiding Plan and CHEVALIER DES PALMES ACADEMIQUES of International Order of Academic Palms of African and Malagasy Council for Higher Education.