RT Journal Article SR Electronic T1 METASPACE: A community-populated knowledge base of spatial metabolomes in health and disease JF bioRxiv FD Cold Spring Harbor Laboratory SP 539478 DO 10.1101/539478 A1 Theodore Alexandrov A1 Katja Ovchinnikova A1 Andrew Palmer A1 Vitaly Kovalev A1 Artem Tarasov A1 Lachlan Stuart A1 Renat Nigmetzianov A1 Dominik Fay A1 Key METASPACE contributors A1 Mathieu Gaudin A1 Cristina Gonzalez Lopez A1 Marina Vetter A1 John Swales A1 Mark Bokhart A1 Mario Kompauer A1 James McKenzie A1 Luca Rappez A1 Dusan Velickovic A1 Regis Lavigne A1 Guanshi Zhang A1 Dinaiz Thinagaran A1 Elisa Ruhland A1 Marta Sans A1 Sergio Triana A1 Denis Abu Sammour A1 Sarah Aboulmagd A1 Charlotte Bagger A1 Nicole Strittmatter A1 Angelos Rigopoulos A1 Erin Gemperline A1 Asta Maria Joensen A1 Benedikt Geier A1 Christine Quiason A1 Eric Weaver A1 Mridula Prasad A1 Benjamin Balluff A1 Konstantin Nagornov A1 Lingjun Li A1 Michael Linscheid A1 Carsten Hopf A1 Dimitri Heintz A1 Manuel Liebeke A1 Bernhard Spengler A1 Berin Boughton A1 Christian Janfelt A1 Kumar Sharma A1 Charles Pineau A1 Christopher Anderton A1 Shane Ellis A1 Michael Becker A1 József Pánczél A1 Georges Da Violante A1 David Muddiman A1 Richard Goodwin A1 Livia Eberlin A1 Zoltan Takats A1 Sheerin Shahidi-Latham YR 2019 UL http://biorxiv.org/content/early/2019/02/03/539478.abstract AB Metabolites, lipids, and other small molecules are key constituents of tissues supporting cellular programs in health and disease. Here, we present METASPACE, a community-populated knowledge base of spatial metabolomes from imaging mass spectrometry data. METASPACE is enabled by a high-performance engine for metabolite annotation in a confidence-controlled way that makes results comparable between experiments and laboratories. By sharing their results publicly, engine users continuously populate a knowledge base of annotated spatial metabolomes in tissues currently including over 3000 datasets from human cancer cohorts, whole-body sections of animal models, and various organs. The spatial metabolomes can be visualized, explored and shared using a web app as well as accessed programmatically for large-scale analysis. By using novel computational methods inspired by natural language processing, we illustrate that METASPACE provides molecular coverage beyond the capacity of any individual laboratory and opens avenues towards comprehensive metabolite atlases on the levels of tissues and organs.