Binding site elucidation and structure guided design of macrocyclic IL-17A antagonists

  • Sci Rep. 2016 Aug 16;6:30859. doi: 10.1038/srep30859.
Shenping Liu  1 Leslie A Dakin  2 Li Xing  2 Jane M Withka  1 Parag V Sahasrabudhe  1 Wei Li  3 Mary Ellen Banker  4 Paul Balbo  3 Suman Shanker  1 Boris A Chrunyk  1 Zuojun Guo  2 Jinshan M Chen  1 Jennifer A Young  1 Guoyun Bai  1 Jeremy T Starr  1 Stephen W Wright  1 Joerg Bussenius  5 Sheng Tan  5 Ariamala Gopalsamy  2 Bruce A Lefker  2 Fabien Vincent  4 Lyn H Jones  2 Hua Xu  2 Lise R Hoth  1 Kieran F Geoghegan  1 Xiayang Qiu  1 Mark E Bunnage  2 Atli Thorarensen  2
Affiliations
  • 1. Worldwide Medicinal Chemistry, Pfizer Worldwide R&D, Eastern Point Road, Groton, CT 06340, USA.
  • 2. Worldwide Medicinal Chemistry, Pfizer Worldwide R&D, 610 Main Street, Cambridge, MA 02139, USA.
  • 3. Inflammation and Immunoscience Research Unit, Pfizer Worldwide R&D, 610 Main Street, Cambridge, MA 02139, USA.
  • 4. Primary Pharmacology Group, Pfizer Worldwide R&D, Eastern Point Road, Groton, CT 06340, USA.
  • 5. WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai 200131, China.
Abstract

Interleukin-17A (IL-17A) is a principal driver of multiple inflammatory and immune disorders. Antibodies that neutralize IL-17A or its receptor (IL-17RA) deliver efficacy in autoimmune diseases, but no small-molecule IL-17A antagonists have yet progressed into clinical trials. Investigation of a series of linear peptide ligands to IL-17A and characterization of their binding site has enabled the design of novel macrocyclic ligands that are themselves potent IL-17A antagonists.

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