Utilization of peptide phage display to investigate hotspots on IL-17A and what it means for drug discovery

PLoS One. 2018 Jan 12;13(1):e0190850. doi: 10.1371/journal.pone.0190850. eCollection 2018.

Abstract

To date, IL-17A antibodies remain the only therapeutic approach to correct the abnormal activation of the IL-17A/IL-17R signaling complex. Why is it that despite the remarkable success of IL-17 antibodies, there is no small molecule antagonist of IL-17A in the clinic? Here we offer a unique approach to address this question. In order to understand the interaction of IL-17A with its receptor, we combined peptide discovery using phage display with HDX, crystallography, and functional assays to map and characterize hot regions that contribute to most of the energetics of the IL-17A/IL-17R interaction. These functional maps are proposed to serve as a guide to aid in the development of small molecules that bind to IL-17A and block its interaction with IL-17RA.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Coliphages / metabolism*
  • Crystallography, X-Ray
  • Enzyme-Linked Immunosorbent Assay
  • HT29 Cells
  • Humans
  • Interleukin-17 / chemistry
  • Interleukin-17 / metabolism*
  • Models, Molecular
  • Peptides / metabolism*
  • Receptors, Interleukin-17 / chemistry
  • Receptors, Interleukin-17 / metabolism*
  • Surface Plasmon Resonance

Substances

  • Interleukin-17
  • Peptides
  • Receptors, Interleukin-17

Grants and funding

This research was funded by Eli Lilly & Company. The funder provided support in the form of salaries for authors [JPT, FT, SA, SW, SBJ, FFZ, AE, HB, MJC, HAB, MW, JAD, JB, AZ, CG, DM, MR, & SA], but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.