1. Computational and Systems Biology
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DIPPER, a spatiotemporal proteomics atlas of human intervertebral discs for exploring ageing and degeneration dynamics

  1. Vivian Tam
  2. Peikai Chen
  3. Anita Yee
  4. Nestor Solis
  5. Theo Klein
  6. Mateusz Kudelko
  7. Rakesh Sharma
  8. Wilson CW Chan
  9. Christopher M Overall
  10. Lisbet Haglund
  11. Pak C Sham
  12. Kathryn Song Eng Cheah
  13. Danny Chan  Is a corresponding author
  1. The University of Hong Kong, Hong Kong
  2. University of British Columbia, Canada
  3. McGill University, Canada
  4. The University of Hong Kong, China
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Cite this article as: eLife 2020;9:e64940 doi: 10.7554/eLife.64940

Abstract

The spatiotemporal proteome of the intervertebral disc (IVD) underpins its integrity and function. We present DIPPER, a deep and comprehensive IVD proteomic resource comprising 94 genome-wide profiles from 17 individuals. To begin with, protein modules defining key directional trends spanning the lateral and anteroposterior axes were derived from high-resolution spatial proteomes of intact young cadaveric lumbar IVDs. They revealed novel region-specific profiles of regulatory activities, and displayed potential paths of deconstruction in the level- and location-matched aged cadaveric discs. Machine learning methods predicted a 'hydration matrisome' that connects extracellular matrix with MRI intensity. Importantly, the static proteome used as point-references can be integrated with dynamic proteome (SILAC/degradome) and transcriptome data from multiple clinical samples, enhancing robustness and clinical relevance. The data, findings and methodology, available on a web interface (www.sbms.hku.hk/dclab/DIPPER), will be valuable references in the field of IVD biology and proteomic analytics.

Article and author information

Author details

  1. Vivian Tam

    School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong, Hong Kong
    Competing interests
    No competing interests declared.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-0457-3477
  2. Peikai Chen

    School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong, Hong Kong
    Competing interests
    No competing interests declared.
  3. Anita Yee

    School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong, Hong Kong
    Competing interests
    No competing interests declared.
  4. Nestor Solis

    Centre for Blood Research, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
    Competing interests
    No competing interests declared.
  5. Theo Klein

    Centre for Blood Research, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
    Competing interests
    Theo Klein, Theo Klein is affiliated with Triskelion BV. The author has no financial interests to declare.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0001-8061-9353
  6. Mateusz Kudelko

    School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong, Hong Kong
    Competing interests
    No competing interests declared.
  7. Rakesh Sharma

    Proteomics and Metabolomics Core Facility, The University of Hong Kong, Pokfulam, Hong Kong, Hong Kong
    Competing interests
    No competing interests declared.
  8. Wilson CW Chan

    School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong, Hong Kong
    Competing interests
    No competing interests declared.
  9. Christopher M Overall

    Centre for Blood Research, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
    Competing interests
    No competing interests declared.
  10. Lisbet Haglund

    Faculty of Medicine, Department of Surgery, McGill University, Montreal, Canada
    Competing interests
    No competing interests declared.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-1288-2149
  11. Pak C Sham

    Department of Psychiatry, The University of Hong Kong, Hong Kong, China
    Competing interests
    No competing interests declared.
  12. Kathryn Song Eng Cheah

    School of Biomedical Sciences, The University of Hong Kong, Hong Kong, Hong Kong
    Competing interests
    Kathryn Song Eng Cheah, Senior editor, eLife.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0003-0802-8799
  13. Danny Chan

    School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong, Hong Kong
    For correspondence
    chand@hku.hk
    Competing interests
    No competing interests declared.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0003-3824-5778

Funding

Research Grants Council, University Grants Committee (E-HKU703/18)

  • Danny Chan

Research Grants Council, University Grants Committee (T12-708/12N)

  • Kathryn Song Eng Cheah

Research Grants Council, University Grants Committee (AoE/M-04/04)

  • Kathryn Song Eng Cheah

Ministry of Science and Technology of the People's Republic of China ((973") (2014CB942900)")

  • Danny Chan

Canadian Institutes of Health Research (FDN-148408)

  • Christopher M Overall

The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.

Ethics

Human subjects: Ethics Statement: Clinical specimens were obtained with approval by the Institutional Review Board (references UW13-576 and EC 1516-00 11/01/2001) and with informed consent in accordance with the Helsinki Declaration of 1975 (revision 1983)

Reviewing Editor

  1. Subburaman Mohan, Loma Linda University, United States

Publication history

  1. Received: November 16, 2020
  2. Accepted: December 30, 2020
  3. Accepted Manuscript published: December 31, 2020 (version 1)

Copyright

© 2020, Tam et al.

This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.

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