Talk by Nicole Radde at the departmental colloquium

November 27, 2023, 4:00 p.m. (CET)

Modeling and simulation of cellular systems - Using mathematical models to transform data into understanding

Time: November 27, 2023, 4:00 p.m. (CET)
  PWR 57, Room 8.122
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Talk abstract:

In this talk I present results from interdisciplinary projects in my research group. These include (i) data-based modeling approaches for a synthetic epigenetic memory system in E. coli that can turn transient input signals into persistent DNA methylation patterns. Our model describes the response of the system to different input triggers and aids a robust design process. We use theory of hysteresis-based oscillations to couple the positive feedback memory module with a slower negative feedback in order to generate self-sustained oscillations. Moreover, we extend our ordinary differential equation model to capture cellular heterogeneity across a population of cells quantified by single cell distribution dynamics. This is a cooperation with Prof. Albert Jeltsch (Institute for Biochemistry and Technical Biochemistry). (ii) Methodology to capture heterogeneity and stochasticity observed in cell populations and in biomedical studies on animals and humans. This ranges from Bayesian workflows for the processing of sparse and highly heterogeneous time series data to upscaling approaches for the simulation and analysis of stochastic biochemical reaction networks. Here we collaborate within the DFG research unit QuaLiPerf ‚Quantifying Liver Perfusion-Function Relationship in Complex Resection - A Systems-Medicine Approach‘ and with colleagues in the Department and in SimTech.

Nicole Radde
Prof. Dr. Nicole Radde

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