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Loos, C. ; Möller, K.* ; Fröhlich, F. ; Hucho, T.* ; Hasenauer, J.

A hierarchical, data-driven approach to modeling single-cell populations predicts latent causes of cell-to-cell variability.

Cell Syst. 6, 593-603.e13 (2018)
Verlagsversion Postprint Forschungsdaten DOI PMC
Open Access Gold (Paid Option)
Creative Commons Lizenzvertrag
All biological systems exhibit cell-to-cell variability. Frameworks exist for understanding how stochastic fluctuations and transient differences in cell state contribute to experimentally observable variations in cellular responses. However, current methods do not allow identification of the sources of variability between and within stable subpopulations of cells. We present a data-driven modeling framework for the analysis of populations comprising heterogeneous subpopulations. Our approach combines mixture modeling with frameworks for distribution approximation, facilitating the integration of multiple single-cell datasets and the detection of causal differences between and within subpopulations. The computational efficiency of our framework allows hundreds of competing hypotheses to be compared. We initially validate our method using simulated data with an understood ground truth, then we analyze data collected using quantitative single-cell microscopy of cultured sensory neurons involved in pain initiation. This approach allows us to quantify the relative contribution of neuronal subpopulations, culture conditions, and expression levels of signaling proteins to the observed cell-to-cell variability in NGF/TrkA-initiated Erk1/2 signaling. Loos et al. introduce a data-driven modeling framework for the mechanistic analysis of heterogeneous cell populations consisting of subpopulations. Applying the framework to single-cell microscopy data of primary sensory neurons, they analyze the influence of extracellular scaffolds onto sensitization signaling.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Heterogeneity ; Mixture Modeling ; Pain Sensitization ; Single-cell Data ; Statistical Inference ; Systems Biology
ISSN (print) / ISBN 2405-4712
e-ISSN 2405-4720
Zeitschrift Cell Systems
Quellenangaben Band: 6, Heft: 5, Seiten: 593-603.e13 Artikelnummer: , Supplement: ,
Verlag Elsevier
Verlagsort Maryland Heights, MO
Nichtpatentliteratur Publikationen
Institut(e) Institute of Computational Biology (ICB)