Systematic comparison of modeling fidelity levels and parameter inference settings applied to negative feedback gene regulation.
Quantitative stochastic models of gene regulatory networks are important tools for studying cellular regulation. Such models can be formulated at many different levels of fidelity. A practical challenge is to determine what model fidelity to use in order to get accurate and representative results. T...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2022-12-01
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| Series: | PLoS Computational Biology |
| Online Access: | https://doi.org/10.1371/journal.pcbi.1010683 |
| _version_ | 1811167262424432640 |
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| author | Adrien Coulier Prashant Singh Marc Sturrock Andreas Hellander |
| author_facet | Adrien Coulier Prashant Singh Marc Sturrock Andreas Hellander |
| author_sort | Adrien Coulier |
| collection | DOAJ |
| description | Quantitative stochastic models of gene regulatory networks are important tools for studying cellular regulation. Such models can be formulated at many different levels of fidelity. A practical challenge is to determine what model fidelity to use in order to get accurate and representative results. The choice is important, because models of successively higher fidelity come at a rapidly increasing computational cost. In some situations, the level of detail is clearly motivated by the question under study. In many situations however, many model options could qualitatively agree with available data, depending on the amount of data and the nature of the observations. Here, an important distinction is whether we are interested in inferring the true (but unknown) physical parameters of the model or if it is sufficient to be able to capture and explain available data. The situation becomes complicated from a computational perspective because inference needs to be approximate. Most often it is based on likelihood-free Approximate Bayesian Computation (ABC) and here determining which summary statistics to use, as well as how much data is needed to reach the desired level of accuracy, are difficult tasks. Ultimately, all of these aspects-the model fidelity, the available data, and the numerical choices for inference-interplay in a complex manner. In this paper we develop a computational pipeline designed to systematically evaluate inference accuracy for a wide range of true known parameters. We then use it to explore inference settings for negative feedback gene regulation. In particular, we compare a detailed spatial stochastic model, a coarse-grained compartment-based multiscale model, and the standard well-mixed model, across several data-scenarios and for multiple numerical options for parameter inference. Practically speaking, this pipeline can be used as a preliminary step to guide modelers prior to gathering experimental data. By training Gaussian processes to approximate the distance function values, we are able to substantially reduce the computational cost of running the pipeline. |
| first_indexed | 2024-04-10T16:06:22Z |
| format | Article |
| id | doaj.art-c495eda7a0cb45349155db01913934a8 |
| institution | Directory Open Access Journal |
| issn | 1553-734X 1553-7358 |
| language | English |
| last_indexed | 2024-04-10T16:06:22Z |
| publishDate | 2022-12-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS Computational Biology |
| spelling | doaj.art-c495eda7a0cb45349155db01913934a82023-02-10T05:30:49ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582022-12-011812e101068310.1371/journal.pcbi.1010683Systematic comparison of modeling fidelity levels and parameter inference settings applied to negative feedback gene regulation.Adrien CoulierPrashant SinghMarc SturrockAndreas HellanderQuantitative stochastic models of gene regulatory networks are important tools for studying cellular regulation. Such models can be formulated at many different levels of fidelity. A practical challenge is to determine what model fidelity to use in order to get accurate and representative results. The choice is important, because models of successively higher fidelity come at a rapidly increasing computational cost. In some situations, the level of detail is clearly motivated by the question under study. In many situations however, many model options could qualitatively agree with available data, depending on the amount of data and the nature of the observations. Here, an important distinction is whether we are interested in inferring the true (but unknown) physical parameters of the model or if it is sufficient to be able to capture and explain available data. The situation becomes complicated from a computational perspective because inference needs to be approximate. Most often it is based on likelihood-free Approximate Bayesian Computation (ABC) and here determining which summary statistics to use, as well as how much data is needed to reach the desired level of accuracy, are difficult tasks. Ultimately, all of these aspects-the model fidelity, the available data, and the numerical choices for inference-interplay in a complex manner. In this paper we develop a computational pipeline designed to systematically evaluate inference accuracy for a wide range of true known parameters. We then use it to explore inference settings for negative feedback gene regulation. In particular, we compare a detailed spatial stochastic model, a coarse-grained compartment-based multiscale model, and the standard well-mixed model, across several data-scenarios and for multiple numerical options for parameter inference. Practically speaking, this pipeline can be used as a preliminary step to guide modelers prior to gathering experimental data. By training Gaussian processes to approximate the distance function values, we are able to substantially reduce the computational cost of running the pipeline.https://doi.org/10.1371/journal.pcbi.1010683 |
| spellingShingle | Adrien Coulier Prashant Singh Marc Sturrock Andreas Hellander Systematic comparison of modeling fidelity levels and parameter inference settings applied to negative feedback gene regulation. PLoS Computational Biology |
| title | Systematic comparison of modeling fidelity levels and parameter inference settings applied to negative feedback gene regulation. |
| title_full | Systematic comparison of modeling fidelity levels and parameter inference settings applied to negative feedback gene regulation. |
| title_fullStr | Systematic comparison of modeling fidelity levels and parameter inference settings applied to negative feedback gene regulation. |
| title_full_unstemmed | Systematic comparison of modeling fidelity levels and parameter inference settings applied to negative feedback gene regulation. |
| title_short | Systematic comparison of modeling fidelity levels and parameter inference settings applied to negative feedback gene regulation. |
| title_sort | systematic comparison of modeling fidelity levels and parameter inference settings applied to negative feedback gene regulation |
| url | https://doi.org/10.1371/journal.pcbi.1010683 |
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