System Identification in Systems Biology

Mats Jirstrand
Fraunhofer-Chalmers Research Centre for Industrial Mathematics
Göteborg


Abstract:

Systems biology is an emerging scientific field that aims at system level understanding of biological processes. This understanding is of crucial importance in both the biotech, pharmaceutical, and bioengineering industry. In the biotech and pharmaceutical industry enhanced understanding of disease mechanisms is of vital importance to successfully find new candidate drugs and drug targets. In the bioengineering industry improved biological process knowledge is the key to better yield and product quality.

In this talk we will give a brief introduction to systems biology from a systems theory point of view. In particular, we will discuss how concepts and tools from system identification (to build mathematical models of dynamic systems based on measured data) can be applied to guide the mathematical modeling process. The process is iterative in nature but the work can often be divided into a number of phases such as physical/biochemical modeling, model reduction, identifiability analysis, experiment design, and parameter estimation. We will cover each step and illustrate their applications and challenges.