Cell Communication and Signaling | |
Modeling approaches for qualitative and semi-quantitative analysis of cellular signaling networks | |
Review | |
Regina Samaga1  Steffen Klamt1  | |
[1] Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstr. 1, D-39106, Magdeburg, Germany; | |
关键词: Interaction graphs; Logical models; Boolean models; Signal transduction; Qualitative modeling; ODE models; EGF signaling; | |
DOI : 10.1186/1478-811X-11-43 | |
received in 2013-04-18, accepted in 2013-06-20, 发布年份 2013 | |
来源: Springer | |
【 摘 要 】
A central goal of systems biology is the construction of predictive models of bio-molecular networks. Cellular networks of moderate size have been modeled successfully in a quantitative way based on differential equations. However, in large-scale networks, knowledge of mechanistic details and kinetic parameters is often too limited to allow for the set-up of predictive quantitative models.Here, we review methodologies for qualitative and semi-quantitative modeling of cellular signal transduction networks. In particular, we focus on three different but related formalisms facilitating modeling of signaling processes with different levels of detail: interaction graphs, logical/Boolean networks, and logic-based ordinary differential equations (ODEs). Albeit the simplest models possible, interaction graphs allow the identification of important network properties such as signaling paths, feedback loops, or global interdependencies. Logical or Boolean models can be derived from interaction graphs by constraining the logical combination of edges. Logical models can be used to study the basic input–output behavior of the system under investigation and to analyze its qualitative dynamic properties by discrete simulations. They also provide a suitable framework to identify proper intervention strategies enforcing or repressing certain behaviors. Finally, as a third formalism, Boolean networks can be transformed into logic-based ODEs enabling studies on essential quantitative and dynamic features of a signaling network, where time and states are continuous.We describe and illustrate key methods and applications of the different modeling formalisms and discuss their relationships. In particular, as one important aspect for model reuse, we will show how these three modeling approaches can be combined to a modeling pipeline (or model hierarchy) allowing one to start with the simplest representation of a signaling network (interaction graph), which can later be refined to logical and eventually to logic-based ODE models. Importantly, systems and network properties determined in the rougher representation are conserved during these transformations.
【 授权许可】
CC BY
© Samaga and Klamt; licensee BioMed Central Ltd. 2013
【 预 览 】
Files | Size | Format | View |
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RO202311101814014ZK.pdf | 1460KB | download |
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