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OTTERS: a powerful TWAS framework leveraging summary-level reference data

  • Qile Dai
  • , Geyu Zhou
  • , eQTLgen Consortium
  • , Hongyu Zhao
  • , Urmo Võsa
  • , Lude Franke
  • , Alexis Battle
  • , Alexander Teumer
  • , Terho Lehtimäki
  • , Olli T. Raitakari
  • , Tõnu Esko
  • , Mawussé Agbessi
  • , Habibul Ahsan
  • , Isabel Alves
  • , Anand Kumar Andiappan
  • , Wibowo Arindrarto
  • , Philip Awadalla
  • , Alexis Battle
  • , Frank Beutner
  • , Marc Jan Bonder
  • Dorret I. Boomsma, Mark W. Christiansen, Annique Claringbould, Patrick Deelen, Marie Julie Favé, Timothy Frayling, Sina A. Gharib, Greg Gibson, Bastiaan T. Heijmans, Gibran Hemani, Rick Jansen, Mika Kähönen, Anette Kalnapenkis, Silva Kasela, Johannes Kettunen, Yungil Kim, Holger Kirsten, Peter Kovacs, Knut Krohn, Jaanika Kronberg, Viktorija Kukushkina, Zoltan Kutalik, Bernett Lee, Markus Loeffler, Urko M. Marigorta, Hailang Mei, Markus Scholz, Joyce van Meurs, Joost Verlouw, Jian Yang, Jingjing Yang*
*Corresponding author for this work
  • Emory University
  • Emory University School of Medicine
  • Yale University
  • Estonian Biocentre
  • University Medical Centre Groningen
  • Oncode Institute & Hubrecht Institute (Utrecht)
  • Johns Hopkins University
  • Tampere University
  • University of Turku
  • Turku University Hospital
  • Ontario Institute for Cancer Research
  • The University of Chicago
  • Agency for Science, Technology and Research, Singapore
  • Leiden University Medical Centre
  • University of Greifswald
  • Leipzig University
  • European Molecular Biology Laboratory
  • Vrije Universiteit Amsterdam
  • University of Washington School of Medicine
  • Utrecht University
  • University of Exeter Medical School
  • Georgia Institute of Technology
  • MRC Integrative Epidemiology Unit at the University of Bristol
  • Tampere University Hospital and Tampere University
  • University of Helsinki
  • Icahn School of Medicine at Mount Sinai
  • University Hospital Leipzig
  • University Hospital Lausanne
  • CIC BioGUNE
  • Ikerbasque Basque Foundation for Science
  • University Medicine Greifswald

Research output: Contribution to journal › Article › Academic › peer-review

38 Citations (Scopus)
186 Downloads (Pure)

Abstract

Most existing TWAS tools require individual-level eQTL reference data and thus are not applicable to summary-level reference eQTL datasets. The development of TWAS methods that can harness summary-level reference data is valuable to enable TWAS in broader settings and enhance power due to increased reference sample size. Thus, we develop a TWAS framework called OTTERS (Omnibus Transcriptome Test using Expression Reference Summary data) that adapts multiple polygenic risk score (PRS) methods to estimate eQTL weights from summary-level eQTL reference data and conducts an omnibus TWAS. We show that OTTERS is a practical and powerful TWAS tool by both simulations and application studies.

Original languageEnglish
Article number1271
JournalNature Communications
Volume14
Issue number1
DOIs
Publication statusPublished - 7 Mar 2023

Bibliographical note

Publisher Copyright:
© 2023, The Author(s).

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