Abstract

RNA-protein interactions (RPIs) are promising targets for developing new molecules of therapeutic interest. Nevertheless, challenges arise from the lack of methods and feedback between computational and experimental techniques during the drug discovery process. Here, we tackle these challenges by developing a drug screening approach that integrates chemical, structural and cellular data from both advanced computational techniques and a method to score RPIs in cells for the development of small RPI inhibitors; and we demonstrate its robustness by targeting Y-box binding protein 1 (YB-1), a messenger RNA-binding protein involved in cancer progression and resistance to chemotherapy. This approach led to the identification of 22 hits validated by molecular dynamics (MD) simulations and nuclear magnetic resonance (NMR) spectroscopy of which 11 were found to significantly interfere with the binding of messenger RNA (mRNA) to YB-1 in cells. One of our leads is an FDA-approved poly(ADP-ribose) polymerase 1 (PARP-1) inhibitor. This work shows the potential of our integrative approach and paves the way for the rational development of RPI inhibitors.

Data availability

All data are available within the Article, Supplementary Files and Appendices, or available from the corresponding authors on reasonable request. Source data for figures 2, 4d, 7b, Figure 3-Figure supplement 3, Figure 8a, Figure 8-Figure supplement 1b-c, Figure 8-Figure supplement 4b-c, Appendix 5 Table 1 and Appendix 5 Figure 1 are also provided with the paper.

Article and author information

Author details

  1. Krystel El Hage

    Department of Chemistry, Université Paris-Saclay, INSERM U1204, Evry, France
    For correspondence
    krystel.elhage@unibas.ch
    Competing interests
    No competing interests declared.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0003-4837-3888
  2. Nicolas Babault

    SYNSIGHT, Evry, France
    Competing interests
    Nicolas Babault, Synsight has acquired a license for the MT bench" patent (WO2016012451A1) concerning the industrial applications. Nicolas Babault is affiliated with SYNSIGHT. The author has no financial interests to declare.".
  3. Olek Maciejak

    Department of Chemistry, Université Paris-Saclay, INSERM U1204, Evry, France
    Competing interests
    No competing interests declared.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0001-9594-9435
  4. Bénédicte Desforges

    Department of Chemistry, Université Paris-Saclay, INSERM U1204, Evry, France
    Competing interests
    No competing interests declared.
  5. Pierrick Craveur

    SYNSIGHT, Evry, France
    Competing interests
    Pierrick Craveur, Synsight has acquired a license for the MT bench" patent (WO2016012451A1) concerning the industrial applications. Pierrick Craveur is affiliated with SYNSIGHT. The author has no financial interests to declare.".
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0001-9274-4944
  6. Emilie Steiner

    laboratoire structure activité des biomolécules normales et pathologiques, Université Paris-Saclay, INSERM U1204, Evry, France
    Competing interests
    No competing interests declared.
  7. Juan Carlos Rengifo-Gonzalez

    SABNP, Université Paris-Saclay, INSERM U1204, Evry, France
    Competing interests
    No competing interests declared.
  8. Hélène Henrie

    SYNSIGHT, Evry, France
    Competing interests
    Hélène Henrie, Synsight has acquired a license for the MT bench" patent (WO2016012451A1) concerning the industrial applications. Hélène Henrie is affiliated with SYNSIGHT. The author has no financial interests to declare.".
  9. Marie-Jeanne Clement

    SABNP, Université Paris-Saclay, INSERM U1204, Evry, France
    Competing interests
    No competing interests declared.
  10. Vandana Joshi

    laboratoire structure activité des biomolécules normales et pathologiques, Université Paris-Saclay, INSERM U1204, Evry, France
    Competing interests
    No competing interests declared.
  11. Ahmed Bouhss

    Structure-Activité des Biomolécules Normales et Pathologiques (SABNP), Université Paris-Saclay, INSERM U1204, Evry, France
    Competing interests
    No competing interests declared.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-6492-1429
  12. Liya Wang

    Structure-Activité des Biomolécules Normales et Pathologiques (SABNP), Université Paris-Saclay, INSERM U1204, Evry, France
    Competing interests
    No competing interests declared.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0001-7119-8665
  13. Cyril Bauvais

    SYNSIGHT, Evry, France
    Competing interests
    Cyril Bauvais, Synsight has acquired a license for the MT bench" patent (WO2016012451A1) concerning the industrial applications. Cyril Bauvais is affiliated with SYNSIGHT. The author has no financial interests to declare.".
  14. David Pastré

    SABNP, Université Paris-Saclay, INSERM U1204, Evry, France
    For correspondence
    david.pastre@univ-evry.fr
    Competing interests
    No competing interests declared.

Funding

HORIZON EUROPE Marie Sklodowska-Curie Actions (895024)

  • Krystel El Hage

Genopole (SATURNE 2020)

  • David Pastré

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

Reviewing Editor

  1. José D Faraldo-Gómez, National Institutes of Health, United States

Version history

  1. Preprint posted: April 10, 2022 (view preprint)
  2. Received: May 18, 2022
  3. Accepted: January 17, 2023
  4. Accepted Manuscript published: January 18, 2023 (version 1)
  5. Version of Record published: February 13, 2023 (version 2)

Copyright

© 2023, El Hage 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

  • 2,515
    views
  • 374
    downloads
  • 3
    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. Krystel El Hage
  2. Nicolas Babault
  3. Olek Maciejak
  4. Bénédicte Desforges
  5. Pierrick Craveur
  6. Emilie Steiner
  7. Juan Carlos Rengifo-Gonzalez
  8. Hélène Henrie
  9. Marie-Jeanne Clement
  10. Vandana Joshi
  11. Ahmed Bouhss
  12. Liya Wang
  13. Cyril Bauvais
  14. David Pastré
(2023)
Targeting RNA:protein interactions with an integrative approach leads to the identification of potent YBX1 inhibitors
eLife 12:e80387.
https://doi.org/10.7554/eLife.80387

Share this article

https://doi.org/10.7554/eLife.80387

Further reading

    1. Biochemistry and Chemical Biology
    2. Cell Biology
    Natalia Dolgova, Eva-Maria E Uhlemann ... Oleg Y Dmitriev
    Research Article

    Mediator of ERBB2-driven Cell Motility 1 (MEMO1) is an evolutionary conserved protein implicated in many biological processes; however, its primary molecular function remains unknown. Importantly, MEMO1 is overexpressed in many types of cancer and was shown to modulate breast cancer metastasis through altered cell motility. To better understand the function of MEMO1 in cancer cells, we analyzed genetic interactions of MEMO1 using gene essentiality data from 1028 cancer cell lines and found multiple iron-related genes exhibiting genetic relationships with MEMO1. We experimentally confirmed several interactions between MEMO1 and iron-related proteins in living cells, most notably, transferrin receptor 2 (TFR2), mitoferrin-2 (SLC25A28), and the global iron response regulator IRP1 (ACO1). These interactions indicate that cells with high MEMO1 expression levels are hypersensitive to the disruptions in iron distribution. Our data also indicate that MEMO1 is involved in ferroptosis and is linked to iron supply to mitochondria. We have found that purified MEMO1 binds iron with high affinity under redox conditions mimicking intracellular environment and solved MEMO1 structures in complex with iron and copper. Our work reveals that the iron coordination mode in MEMO1 is very similar to that of iron-containing extradiol dioxygenases, which also display a similar structural fold. We conclude that MEMO1 is an iron-binding protein that modulates iron homeostasis in cancer cells.

    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics
    Isabelle Petit-Hartlein, Annelise Vermot ... Franck Fieschi
    Research Article

    NADPH oxidases (NOX) are transmembrane proteins, widely spread in eukaryotes and prokaryotes, that produce reactive oxygen species (ROS). Eukaryotes use the ROS products for innate immune defense and signaling in critical (patho)physiological processes. Despite the recent structures of human NOX isoforms, the activation of electron transfer remains incompletely understood. SpNOX, a homolog from Streptococcus pneumoniae, can serves as a robust model for exploring electron transfers in the NOX family thanks to its constitutive activity. Crystal structures of SpNOX full-length and dehydrogenase (DH) domain constructs are revealed here. The isolated DH domain acts as a flavin reductase, and both constructs use either NADPH or NADH as substrate. Our findings suggest that hydride transfer from NAD(P)H to FAD is the rate-limiting step in electron transfer. We identify significance of F397 in nicotinamide access to flavin isoalloxazine and confirm flavin binding contributions from both DH and Transmembrane (TM) domains. Comparison with related enzymes suggests that distal access to heme may influence the final electron acceptor, while the relative position of DH and TM does not necessarily correlate with activity, contrary to previous suggestions. It rather suggests requirement of an internal rearrangement, within the DH domain, to switch from a resting to an active state. Thus, SpNOX appears to be a good model of active NOX2, which allows us to propose an explanation for NOX2’s requirement for activation.