François Fages

François Fages is Research Director at Inria Saclay Ile de France. He passed his Doctorate Thesis in 1983 at age 23 on unification theory and automated deduction, and got a research position at CNRS, Ecole Normale Supérieure, where he worked on the theory and practice of rule-based programming, with also part-time assistant professorship at Ecole Polytechnique (1985-98) and part-time consultancy at Thomson-CSF/Thales group (1985-96). In 1999 he joined Inria and got interested in computational systems biology. He currently leads the LIFEWARE project-team, coordinates the development of the BIOCHAM modeling software for systems and synthetic biology, and collaborates with biologists on challenging questions in cell signaling, cell cycle, circadian clock control and biochemical reaction network design. He gives Master courses on “Biochemical programming” and “Constraint-based modeling and algorithms for decision making”. In 2014, he received the Michel Monpetit prize from the French Academy of Sciences, and in 2019 the La Recherche magazine award.

Title of the talk: Turing-completeness of chemical reaction networks in natural cells and artificial vesicles.

Abstract: Chemical reaction networks (CRN) are a formalism widely used in chemistry and biology to describe complex systems of molecular interactions. The proof of Turing-completeness of elementary CRNs interpreted by ordinary differential equations with mass-action law kinetics means that any computable function over the real numbers can be computed by a CRN over a finite set of molecular species. In this view, the molecular concentrations are the information carriers, the analog programs of the cell are determined by the set of all possible reactions with the protein encoded in the genome and the molecules of the environment, and gene expression determines program change. We illustrate this approach with the computer-aided design of CRN for implementing oscillators, switches, analog-digital converters, boolean functions, and their implementation in DNA-free artificial vesicles.

Hiroshi Matsuno

Hiroshi Matsuno received B.E. and M.E. in Electronics from Yamaguchi University in 1982 and 1984, respectively. He received the Ph.D. from Kyushu University in 1994. He is currently a professor in  Graduate School of Science and Engineering for Innovation, Yamaguchi University, Japan. After firstly applying hybrid Petri net to the modeling of gene regulatory network in 2000, he has been working on Petri net modeling  for cellular processes including signal transduction and metabolic network,  recently focusing on cell-cell interaction modeling of Drosophila and grobal  scale metabolic networks of E.coli. He is a member of Institute of Information Processing Society of Japan and Japanese Society for Bioinformatics.

Nathalie Théret

Nathalie Théret is a director of research at the French Medical Research Institute (INSERM) and she is currently a research group leader at the Research Institute for Environmental and Occupational Health. She is specialized in studying microenvironment remodeling in chronic liver diseases and the implication of metalloproteases and TGF-b-dependent regulatory pathways. Over past decade, she developed collaborative projects with computational researchers to address the biological complexity of liver fibrosis and tumor progression. One of them is the Cadbiom project which is developped in collaboration with DYLISS team at the “Institut de Recherche en Informatique et Systèmes Aléatoires”.

Francine Diener

Francine Diener is Emeritus Professor of Université Côte d’Azur, Nice, France. After having trained herself as a pure mathematician in the field of dynamical systems, she devoted herself to various application fields of mathematics, economics, finance and, more recently, biology. Since 2010, she collaborates with the bioinformatics team at the I3S research laboratory in Sophia Antipolis, France. She has contributed to the creation of several undergraduate and post graduate teaching programs in computational biology at Université Côte d’Azur.

Sylvain Benito

Sylvain Benito is co-founder and Chief Science Officer at ExactCure, a start-up based in Nice and dedicated to e-health. He has officialy joined the project in august 2018. Prior to that Sylvain held a position of research scientist for more than five years at Dassault Systèmes within the Corporate Research Department. His scientific areas of interest include modelling in pharmacometry, quantitative systems pharmacology and systems biology as well as applied mathematics ans scientific computing. Sylvain holds a Ph.D. in applied mathematics and scientific computing (Univ. Bordeaux 1, 2009) and M.Sc in scientific computing (Univ. Bordeaux 1, 2005) and applied probability (Ecole des Ponts, 2011).

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