He is a Knight of the National Order of Merit (1992), Knight of the Legion of Honour (2000) and Officer of the Legion of Honour (2012). Daniel Louvard is a biochemist, cell and molecular biologist. His fundamental research focuses on epithelial functions, in particular vesicular membrane trafficking, intercellular junctions and actin cytoskeleton of polarized epithelial cells. He continues his research on the molecular basis of cell polarity, cell motility and cell plasticity. More recently, he has developed new research on transgenic mice. These genetically modified animal models, containing transgenes expressed only in the intestine and subject to strict conditional control, have allowed his group to study the molecular basis of carcinogenesis of the digestive epithelium in order to develop new diagnostic and therapeutic approaches to malignant colonic metastases. At the European Molecular Biology Laboratory he created his first research group in 1978. His work was devoted to intracellular membrane trafficking and the polarity of epithelial cells. At the Pasteur Institute in 1982 he continued his research on cell polarity, actin cytoskeleton and intestinal cell differentiation. At the Institut Curie in 1993, his work continued in several directions with a team of 20 people: cell polarity, signalling via surface receptors and actin cytoskeleton, development of mouse models of intestinal carcinogenesis, cell morphogenesis, stem cells and cancer. His research, which has been concretized and recognized internationally, invitations as a speaker (more than 100 invited conferences), scientific awards, national and international research grants have been one of the aspects of his scientific career. Daniel Louvard has also contributed his skills as a member of scientific councils to numerous organizations for the evaluation of researchers' or institutions' research projects (CNRS, Inserm, EMBO, EMBL, ERC, ANR, Institut Pasteur, IECB, ENS, INCa, MRC, VIB, Singapore University, Max Planck, NIH, American Universities ...) or by participating in the evaluation and awarding of prizes (Académie des Sciences, Fondation Bettencourt, Fondation IPSEN, ARC, LNCC, Fondation Kôrber...). Passionate about research and teaching, two fundamental missions of the research profession, he has contributed throughout his career to the teaching of Masters and Doctorates at Parisian and provincial universities. He created and co-directed for more than 15 years the Molecular Biology Course of the Institut Pasteur Cell.