Abstract
Transcription factor (TF) networks orchestrate the regulation of gene programs in mammalian cells, including white and brown adipocytes. In this protocol, we outline how genomics and transcriptomics data can be integrated to infer causal TFs of a given cellular response or cell type using “Integrated analysis of Motif Activity and Gene Expression changes of transcription factors” (IMAGE). Here, we show how key regulatory TFs controlling white and brown adipocyte gene programs can be predicted from chromatin accessibility and RNA-seq data. Furthermore, we demonstrate how information about target sites and target genes of the predicted key regulators can be integrated to propose testable hypotheses regarding the role and mechanisms of TFs.
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Acknowledgments
The authors thank our colleagues from the Functional Genomics and Metabolism Research Unit, University of Southern Denmark for fruitful discussions. The work was supported by grants from the Danish National Research Foundation (DNRF grant No. 141 to the Center for Functional Genomics and Tissue Plasticity (ATLAS) and grants from the Independent Research Fund Denmark. A.L. is supported by a fellowship from the Novo Nordisk Foundation (NNF16OC0020742).
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Loft, A., Andersen, M.W., Madsen, J.G.S., Mandrup, S. (2022). Analysis of Enhancers and Transcriptional Networks in Thermogenic Adipocytes. In: Guertin, D.A., Wolfrum, C. (eds) Brown Adipose Tissue. Methods in Molecular Biology, vol 2448. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-2087-8_11
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