Improving drug discovery using image-based multiparametric analysis of the epigenetic landscape

  1. Chen Farhy
  2. Santosh Hariharan
  3. Jarkko Ylanko
  4. Luis Orozco
  5. Fu-Yue Zeng
  6. Ian Pass
  7. Fernando Ugarte
  8. E Camilla Forsberg
  9. Chun-Teng Huang
  10. David W Andrews
  11. Alexey V Terskikh  Is a corresponding author
  1. Sanford Burnham Prebys Medical Discovery Institute, United States
  2. University of Toronto, Canada
  3. University of California, Santa Cruz, United States

Abstract

High-content phenotypic screening has become the approach of choice for drug discovery due to its ability to extract drug-specific multi-layered data. In the field of epigenetics, such screening methods have suffered from a lack of tools sensitive to selective epigenetic perturbations. Here we describe a novel approach, Microscopic Imaging of Epigenetic Landscapes (MIEL), which captures the nuclear staining patterns of epigenetic marks and employs machine learning to accurately distinguish between such patterns. We validated the MIEL platform across multiple cells lines and using dose-response curves, to insure the fidelity and robustness of this approach for high content high throughput drug discovery. Focusing on noncytotoxic glioblastoma treatments, we demonstrated that MIEL can identify and classify epigenetically active drugs. Furthermore, we show MIEL was able to accurately rank candidate drugs by their ability to produce desired epigenetic alterations consistent with increased sensitivity to chemotherapeutic agents or with induction of glioblastoma differentiation.

Data availability

Sequencing data have been deposited in GEO under accession code GSE134045

The following data sets were generated

Article and author information

Author details

  1. Chen Farhy

    Sanford Burnham Prebys Medical Discovery Institute, La Jolla, United States
    Competing interests
    The authors declare that no competing interests exist.
  2. Santosh Hariharan

    Biological Sciences Platform, Sunnybrook Research Institute, University of Toronto, Toronto, Canada
    Competing interests
    The authors declare that no competing interests exist.
  3. Jarkko Ylanko

    Biological Sciences Platform, Sunnybrook Research Institute, University of Toronto, Toronto, Canada
    Competing interests
    The authors declare that no competing interests exist.
  4. Luis Orozco

    Sanford Burnham Prebys Medical Discovery Institute, La Jolla, United States
    Competing interests
    The authors declare that no competing interests exist.
  5. Fu-Yue Zeng

    Sanford Burnham Prebys Medical Discovery Institute, La Jolla, United States
    Competing interests
    The authors declare that no competing interests exist.
  6. Ian Pass

    Sanford Burnham Prebys Medical Discovery Institute, La Jolla, United States
    Competing interests
    The authors declare that no competing interests exist.
  7. Fernando Ugarte

    Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, United States
    Competing interests
    The authors declare that no competing interests exist.
  8. E Camilla Forsberg

    Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, United States
    Competing interests
    The authors declare that no competing interests exist.
  9. Chun-Teng Huang

    Sanford Burnham Prebys Medical Discovery Institute, La Jolla, United States
    Competing interests
    The authors declare that no competing interests exist.
  10. David W Andrews

    Biological Sciences Platform, Sunnybrook Research Institute, University of Toronto, Toronto, Canada
    Competing interests
    The authors declare that no competing interests exist.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-9266-7157
  11. Alexey V Terskikh

    Sanford Burnham Prebys Medical Discovery Institute, La Jolla, United States
    For correspondence
    terskikh@sbpdiscovery.org
    Competing interests
    The authors declare that no competing interests exist.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0003-4641-3997

Funding

California Institute for Regenerative Medicine (TG2-01162)

  • Chen Farhy

Celgene (SCRA)

  • Alexey V Terskikh

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

Reviewing Editor

  1. Ross L Levine, Memorial Sloan Kettering Cancer Center, United States

Version history

  1. Received: June 27, 2019
  2. Accepted: October 5, 2019
  3. Accepted Manuscript published: October 22, 2019 (version 1)
  4. Version of Record published: December 12, 2019 (version 2)

Copyright

© 2019, Farhy 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.

Metrics

  • 4,677
    views
  • 762
    downloads
  • 17
    citations

Views, downloads and citations are aggregated across all versions of this paper published by eLife.

Download links

A two-part list of links to download the article, or parts of the article, in various formats.

Downloads (link to download the article as PDF)

Open citations (links to open the citations from this article in various online reference manager services)

Cite this article (links to download the citations from this article in formats compatible with various reference manager tools)

  1. Chen Farhy
  2. Santosh Hariharan
  3. Jarkko Ylanko
  4. Luis Orozco
  5. Fu-Yue Zeng
  6. Ian Pass
  7. Fernando Ugarte
  8. E Camilla Forsberg
  9. Chun-Teng Huang
  10. David W Andrews
  11. Alexey V Terskikh
(2019)
Improving drug discovery using image-based multiparametric analysis of the epigenetic landscape
eLife 8:e49683.
https://doi.org/10.7554/eLife.49683

Share this article

https://doi.org/10.7554/eLife.49683

Further reading

    1. Cancer Biology
    2. Cell Biology
    Stefanie Schmieder
    Insight

    Mutations in the gene for β-catenin cause liver cancer cells to release fewer exosomes, which reduces the number of immune cells infiltrating the tumor.

    1. Cancer Biology
    2. Cell Biology
    Dongyue Jiao, Huiru Sun ... Kun Gao
    Research Article

    Enhanced protein synthesis is a crucial molecular mechanism that allows cancer cells to survive, proliferate, metastasize, and develop resistance to anti-cancer treatments, and often arises as a consequence of increased signaling flux channeled to mRNA-bearing eukaryotic initiation factor 4F (eIF4F). However, the post-translational regulation of eIF4A1, an ATP-dependent RNA helicase and subunit of the eIF4F complex, is still poorly understood. Here, we demonstrate that IBTK, a substrate-binding adaptor of the Cullin 3-RING ubiquitin ligase (CRL3) complex, interacts with eIF4A1. The non-degradative ubiquitination of eIF4A1 catalyzed by the CRL3IBTK complex promotes cap-dependent translational initiation, nascent protein synthesis, oncogene expression, and cervical tumor cell growth both in vivo and in vitro. Moreover, we show that mTORC1 and S6K1, two key regulators of protein synthesis, directly phosphorylate IBTK to augment eIF4A1 ubiquitination and sustained oncogenic translation. This link between the CRL3IBTK complex and the mTORC1/S6K1 signaling pathway, which is frequently dysregulated in cancer, represents a promising target for anti-cancer therapies.