Extraction and analysis of signatures from the Gene Expression Omnibus by the crowd

Wang, Zichen, Monteiro, Caroline D., Jagodnik, Kathleen M., Fernandez, Nicolas F., Gundersen, Gregory W., Rouillard, Andrew D., Jenkins, Sherry L., Feldmann, Axel S., Hu, Kevin S., McDermott, Michael G., Duan, Qiaonan, Clark, Neil R., Jones, Matthew R., Kou, Yan, Goff, Troy, Woodland, Holly, Amaral, Fabio M. R., Szeto, Gregory L., Fuchs, Oliver, Rose Schüssler-Fiorenza, Sophia M., Sharma, Shvetank, Schwartz, Uwe, Bengoetxea Bausela, Xabier, Szymkiewicz, Maciej, Maroulis, Vasileios, Salykin, Anton, Barra, Carolina M., Kruth, Candice D., Bongio, Nicholas J., Mathur, Vaibhav, Todoric, Radmila D., Rubin, Udi E., Malatras, Apostolos, Fulp, Carl T., Galindo, John A., Motiejunaite, Ruta, Jüschke, Christoph, Dishuck, Philip C., Lahl, Katharina, Jafari, Mohieddin, Aibar, Sara, Zaravinos, Apostolos, Steenhuizen, Linda H., Allison, Lindsey R., Gamallo, Pablo, de Andres Segura, Fernando, Devlin, Tyler Dae, Perez-Garcia, Vicente and Ma'ayan, Avi (2016): Extraction and analysis of signatures from the Gene Expression Omnibus by the crowd. In: Nature Communications, Vol. 7, 12846

Abstract

Gene expression data are accumulating exponentially in public repositories. Reanalysis and integration of themed collections from these studies may provide new insights, but requires further human curation. Here we report a crowdsourcing project to annotate and reanalyse a large number of gene expression profiles from Gene Expression Omnibus (GEO). Through a massive open online course on Coursera, over 70 participants from over 25 countries identify and annotate 2,460 single-gene perturbation signatures, 839 disease versus normal signatures, and 906 drug perturbation signatures. All these signatures are unique and are manually validated for quality. Global analysis of these signatures confirms known associations and identifies novel associations between genes, diseases and drugs. The manually curated signatures are used as a training set to develop classifiers for extracting similar signatures from the entire GEO repository. We develop a web portal to serve these signatures for query, download and visualization.

• Item Type: Journal article
• Faculties: Medicine > Medical Center of the University of Munich > Pediatric Clinic and Outpatient Clinic in the Dr. von Hauner Children‘s Hospital
• Subjects: 600 Technology > 610 Medicine and health
• ISSN: 2041-1723
• Language: English