title: Causal protein-signaling networks derived from multiparameter single-cell data.
abstract: Machine learning was applied for the automated derivation of causal influences in cellular signaling networks. This derivation relied on the simultaneous measurement of multiple phosphorylated protein and phospholipid components in thousands of individual primary human immune system cells. Perturbing these cells with molecular interventions drove the ordering of connections between pathway components, wherein Bayesian network computational methods automatically elucidated most of the traditionally reported signaling relationships and predicted novel interpathway network causalities, which we verified experimentally. Reconstruction of network models from physiologically relevant primary single cells might be applied to understanding native-state tissue signaling biology, complex drug actions, and dysfunctional signaling in diseased cells.
authors.affiliation: Biological Engineering Division, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA.
authors.forename: Karen
authors.initials: K
authors.lastname: Sachs
authors.forename: Omar
authors.initials: O
authors.lastname: Perez
authors.forename: Dana
authors.initials: D
authors.lastname: Pe'er
authors.forename: Douglas A
authors.initials: DA
authors.lastname: Lauffenburger
authors.forename: Garry P
authors.initials: GP
authors.lastname: Nolan
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D001499:Bayes Theorem; D015496:CD4-Positive T-Lymphocytes / Q000378:metabolism*; D017868:Cyclic AMP-Dependent Protein Kinases / Q000378:metabolism; D048049:Extracellular Signal-Regulated MAP Kinases / Q000378:metabolism; D005434:Flow Cytometry; D006801:Humans; D047908:Intracellular Signaling Peptides and Proteins / Q000378:metabolism*; D008433:Mathematics; D008954:Models, Biological; D010743:Phospholipids / Q000378:metabolism; D010750:Phosphoproteins / Q000378:metabolism; D010766:Phosphorylation; D011493:Protein Kinase C / Q000378:metabolism; D017346:Protein Serine-Threonine Kinases / Q000378:metabolism; D011518:Proto-Oncogene Proteins / Q000378:metabolism; D051057:Proto-Oncogene Proteins c-akt; D034741:RNA, Small Interfering; D015398:Signal Transduction
chemical_list: D047908:Intracellular Signaling Peptides and Proteins; D010743:Phospholipids; D010750:Phosphoproteins; D011518:Proto-Oncogene Proteins; D034741:RNA, Small Interfering; D017346:Protein Serine-Threonine Kinases; D051057:Proto-Oncogene Proteins c-akt; D017868:Cyclic AMP-Dependent Protein Kinases; D011493:Protein Kinase C; D048049:Extracellular Signal-Regulated MAP Kinases