Philippe Sansonetti
| Philippe Sansonetti | |
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| Born | 1949 (age 67–68) |
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| Notable awards | ForMemRS (2014) |
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Philippe J. Sansonetti, MS, MD, (born 1949) is a microbiologist, Professor at the Pasteur Institute and the Collège de France in Paris. He is the Director of the Inserm Unit 786 (Microbial colonisation and invasion of mucosa) and of the Institut Pasteur laboratory Pathogénie Microbienne Moléculaire.
Philippe Sansonetti completed General Microbiology, General Virology and Immunology courses at the Institut Pasteur and received his MS degree in Biochemistry/Microbiology from the University Paris VII Diderot in 1978 and obtained his MD degree from the University Paris VI in 1979. After a research fellowship at the Unité de Bactériologie Médicale headed by Léon Le Minor, he undertook a post-doctoral position in the laboratory of Professor Samuel Formal in the Department of Enteric Diseases at the Walter Reed Army Institute of Research, Washington, D.C. He returned to the Pasteur Institute in 1981 to the Enterobacteria Unit (Unité des entérobactéries) where he started his own research group. In 1989, he created and headed the Unité de Pathogénie Microbienne Moléculaire (Molecular Microbial Pathogenesis Unit). He practiced internal medicine (1981–1985) before becoming head of the out-patient Clinic (1985–1995) and then becoming the medical director at the Institut Pasteur hospital (1995–1999 and 2004–2007). He was chairman of the Departments of Bacteriology and Mycology (1989–1992) and Cell Biology and Infection (2002–2006).
Sansonetti has held several scientific administration positions at INSERM, French Ministry of Research and Technology, as well as at the World Health Organisation where he was chairman of the Steering committee on Diarrheal Diseases Vaccine Development.
Research performed by Philippe Sansonetti has mainly been focused on the understanding of several aspects of the pathogenesis of Shigella, a bacterium causing severe diarrhoea. His work spans a large set of disciplines in biology and medicine and ranges from molecular genetics, to cell biology, immunology and the development of vaccines against dysentery. Sansonetti's laboratory has notably shown that Shigella pathogenesis is imparted by a large virulence plasmid containing a pathogenicity island encoding a type three secretion system required for entry into epithelial cells; characterised the molecular mechanisms leading to Shigella epithelial cell invasion and intracellular motility; demonstrated that Shigella kills macrophages by pyroptosis; identified that intracellular bacteria are detected by Nod proteins leading to production of pro-inflammatory cytokines and identified a pool of Shigella effectors controlling both innate and adaptive responses. He also actively contributes to the development of vaccine candidates against the major shigellae causing dysentery in the developing world.
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