{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# Processing Boolean Models from Cell Collective" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "
\n",
"In this tutorial, we present a workflow for processing Boolean models available in Cell Collective using BooLEVARD. The pipeline involves the following steps:\n",
"\n",
"1. **Importing** a model in *SBML-qual* format (Cell Collective default).\n",
"2. **Converting** the model to *BoolNet* format (BooLEVARD's input).\n",
"3. **Loading** the model into **BooLEVARD** to compute path-count-based transduction scores toward every non-input node within the model.\n",
"4. **Extracting** stable state analysis results to determine the binary activation state (0 or 1) of the non-input nodes within the model.\n",
"\n",
"In addition to the transduction scores and stable states, we provide metadata for each example, including:\n",
"- Total numbber of nodes,\n",
"- Number of computed *stable states*,\n",
"- Total count of *activating and inhibitory paths*.\n",
"- And the *runtime* required for each computation step.\n",
"\n",
"We apply this workflow to six publicly available Boolean models from Cell Collective:\n",
"\n",
"- **T Cell Receptor Signaling** [visit] \n",
"This model represents the activation of primary T lymphocytes, key regulators of the adaptive immune response. Unlike many existing models, which are often based on data from transformed T cell lines, this network was constructed integrating experimental findings specifically from non-transformed, primary T cells. The model captures key signaling events triggered by the engagement of the T Cell Receptor (TCR), CD4/CD8 co-receptors, and the co-stimulatory molecule CD28. Therefore, it enables the in silico exploration of T cell activation pathways and was used to uncover non-obvious signaling routes, such asthose involving CD28 and the kinase Fyn. \n",
" \n",
"Saez-Rodriguez J, Simeoni L, Lindquist JA, Hemenway R, Bommhardt U, et al. (2007). \n",
"A Logical Model Provides Insights into T Cell Receptor Signaling. \n",
"PLOS Computational Biology 3(8): e163. \n",
"https://doi.org/10.1371/journal.pcbi.0030163\n",
" \n",
"\n",
"This model describes the signaling network underlying **ABA-induced stomatal closure** in plant guard cells. Stomata are microscopic pores on th leaf surface that regulate gas exchange, and their aperture is tightly controlled by a pair of guard cells. In response to drought, the hormone abscisic acid (ABA) promotes stomatal closure to minimize water loss. This complex physiological response involves a broad aarray of molecular components, including ion channels, secondary messengers, and cytoskeletal regulators. The model integrates more than 40 experimetally characterized components into a unified **signal transduction network** that captures the main regulatory interactions driving guard cell shrinkage and stomatal closure. It successfully reproduces known physiological and pathway-level respones to ABA.\n",
"\n",
" \n",
"Li S, Assmann SM, Albert R (2006). \n",
"Predicting Essential Components of Signal Transduction Networks: A Dynamic Model of Guard Cell Abscisic Acid Signaling. \n",
"PLOS Biology 4(10): e312. \n",
"https://doi.org/10.1371/journal.pbio.0040312\n",
" \n",
"\n",
"This model represents the survival signaling network of **T cell large granular lymphocyte (T-LGL) leukemia**, a disease characterized by the clonal expansion of antigen-primed, cytotoxic T lymphocytes (CTL). The model integrates key signaling pathways involved in normal CTL activation and dysregulated survival signals observed in leukemic T-LGL cells. It includes not only molecular components like proteins, mRNAs, and small molecules, but also summary nodes that represent high-level cellular processes such as *Proliferation*, *Apoptosis*, and *Cytoskeleton signaling*. Thediscrete dynamic model provides a framework for identifying potential therapeutic targets in T-LGL leukemia and for exploring mechanisms of long-term CTL survival in both pathological and immunotherapeutic contexts.\n",
" \n",
"Zhang R, Shah MV, Yang J, Nyland SB, Liu X, Yun JK, Albert R, Loughran TP (2008). \n",
"Network Model of Survival Signaling in Large Granular Lymphocyte Leukemia. \n",
"Proceedings of the National Academy of Sciences 105(42): 16308–16313. \n",
"https://doi.org/10.1073/pnas.0806447105\n",
" \n",
"\n",
"This model describes the molecular signaling events that govern **HGF-induced migration of human keratinocytes (NHK)**, a key process in wound healing and tissue regeneration. The model integrates multiple layers of regulation, including protein signaling, gene expression, and autocrine feedback loops, to capture the full progression from initial stimulation by hepatocyte growth factor (HGF) to the execution of the migratory phenotype. The networks focuses on the dynamics of MET receptor activation, followed by downstream MAPK/ERK and p38/JNK pathway activation, and later sustained by autocrine signals involving EGF receptor and urokinase-type plasminogen activator receptor. This layered activation captures the time-dependent orchestration of early signaling and late transcriptial responses necessary for sustained migration. To reproduce this dynamic behavior, the model incorporates two distinct time scales:\n",
"- A **rapid phase** (0-1h) covering immediate protein phosphorylation events.\n",
"- A **delayed phase** (1-3h) encompassing transcriptional regulation and autocrine signaling.\n",
"\n",
"This hybrid Boolean framework bridges transcriptomic data with mechanistic signaling, offering a powerful tool to explore the temporal logic of wound healing and keratinocyte migration.\n",
" \n",
"Singh A, Nascimento JM, Kowar S, Busch H, Boerries M (2012). \n",
"Boolean Approach to Signalling Pathway Modelling in HGF-Induced Keratinocyte Migration. \n",
"Bioinformatics, 28(18): i495–i501. \n",
"https://doi.org/10.1093/bioinformatics/bts410\n",
" \n",
"\n",
"This model represents the signaling pathways regulating **cell survival and apoptosis in U266 multiple myeloma (MM) cells**, with a focus on understanding the cytotoxic effects of bortezomib, a proteasome inhibitor used as first-line therapy in MM. The network integrates major signaling axes such as NFkB, JAK/STAT, and Bcl-2 family proteins. The model illustrate how discrete logic-based models can be coupled with drug response dynamics to explore therapeutic mechanisms and rationale discrepancies between expected and observed outcomes.\n",
" \n",
"Chudasama VL, Ovacik MA, Abernethy DR, Mager DE (2015). \n",
"Logic-Based and Cellular Pharmacodynamic Modeling of Bortezomib Responses in U266 Human Myeloma Cells. \n",
"The Journal of Pharmacology and Experimental Therapeutics, 354(3): 448–458. \n",
"https://doi.org/10.1124/jpet.115.224766\n",
" \n",
"\n",
"This model captures the complex dynamics of the **MAPK signaling network**, which regulates crucial cellular processes such as proliferation, differentiation, survival, and apoptosis. The network integrates multiple signaling branches relevant in cancer biology, where its desregulation is associated with tumor progression and therapy resistance. Focusing on urinary bladder cancer, the model incorporates key components and interactions derived from extensive literature curation, and was developed to explore how combinations of stimuli and perturbations influence cell fate decisions, providing mechanistic hypotheses to explain divergent cellular behaviors in response to oncogenic signals.\n",
" \n",
"Grieco L, Calzone L, Bernard-Pierrot I, Radvanyi F, Kahn-Perlès B, et al. (2013). \n",
"Integrative Modelling of the Influence of MAPK Network on Cancer Cell Fate Decision. \n",
"PLOS Computational Biology 9(10): e1003286. \n",
"https://doi.org/10.1371/journal.pcbi.1003286\n",
" \n",
"\n",
"This model captures the complex dynamics of the IL-1 signaling mechanisms, which regulate crucial cellular processes such as immune coordination upon infection or injury, mitogenic and pro-proliferative signaling, apoptosis, inhibition, chemotaxis, and angiogenesis, thereby balancing tissue regeneration against invasive growth, tumorigenesis, and metastasis. The network integrates multiple stimulus-response branches, including feedback and feed-forward loops, whose dysregulation is implicated not only in cancer progression, but also in insulin ressitance. The model incorporates extensive literature-curated components and is optimized with high-throughput phosphoproteomic data.\n",
" \n",
"Ryll A, Samaga R, Schaper F, Alexopoulos LG, Klamt S, et al. (2011). \n",
"Large-scale network models of IL-1 and IL-6 signalling and their hepatocellular specification. \n",
"Mol Biosyst. 7(12):3253–70. \n",
"https://doi.org/10.1039/c1mb05261f\n",
" \n",
"\n",
"This model captures the complex dynamics of the IL-6 signaling mechanisms, which regulate crucial cellular processes such as immune coordination upon infection or injury, mitogenic and pro-proliferative signaling, apoptosis, inhibition, chemotaxis, and angiogenesis, thereby balancing tissue regeneration against invasive growth, tumorigenesis, and metastasis. The network integrates multiple stimulus-response branches, including feedback and feed-forward loops, whose dysregulation is implicated not only in cancer progression, but also in insulin ressitance. The model incorporates extensive literature-curated components and is optimized with high-throughput phosphoproteomic data.\n",
" \n",
"Ryll A, Samaga R, Schaper F, Alexopoulos LG, Klamt S, et al. (2011). \n",
"Large-scale network models of IL-1 and IL-6 signalling and their hepatocellular specification. \n",
"Mol Biosyst. 7(12):3253–70. \n",
"https://doi.org/10.1039/c1mb05261f\n",
" \n",
"\n",
"This model captures the complex dynamics of the **early metastatic cascade**, which regulates crucial cellular processes such as local invasion and migration. The network integrates multiple signaling branches relevant in cancer biology, where its dysregulation is associated with metastatic dissemination and patient mortality. Focusing on TGF-beta-driven epithelial-to-mesenchymal transition in lung cancer and validated against transcriptome dynamics and mouse models, the model incorporates key components and interactions derived from extensive literature curation.\n",
" \n",
"Cohen DPA, Martignetti L, Robine S, Barillot E, Zinovyev A, et al. (2015). \n",
"Mathematical Modelling of Molecular Pathways Enabling Tumour Cell Invasion and Migration. \n",
"PLOS Computational Biology 11(11): e1004571. \n",
"https://doi.org/10.1371/journal.pcbi.1004571\n",
"
\n",
"- **Guard Cell Abscisic Acid Signaling** [visit]
\n",
"- **T-LGL Survival Network** [visit]
\n",
"- **HGF Signaling in Keratinocytes** [visit]
\n",
"- **Bortezomib Responses in U266 Human Myeloma Cells** [visit]
\n",
"- **MAPK Cancer Cell Fate Network** [visit]
\n",
"- **IL-1 Signaling** [visit]
\n",
"- **IL-6 Signaling** [visit]
\n",
"- **Tumor Cell Invasion** [visit]
\n",
"\n",
"This use case illustrates how mechanistic information encoded in the Boolean equations (captured by transduction path counts) can be systematically compared with the emergent behavior of the system derived from its stable states."
]
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"Generate reports
\n",
"1.- T Cell Receptor Signaling [back]
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"\n",
"2.- Guard Cell Abscisic Acid [back]
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"3.- T-LGL Survival Network [back]
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"4.- HGF Signaling in Keratinocytes [back]
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"5.- Bortezomib Responses in U266 Human Myeloma Cells [back]
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"6.- MAPK Cancer Cell Fate Network [back]
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"7.- IL-1 Signaling [back]
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"8.- IL-6 Signaling [back]
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"9.- Tumor Cell Invasion [back]
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"