Discovery and pharmacological evaluation of indole derivatives as potent and selective RORγt inverse agonist for multiple autoimmune conditions

Bioorg Med Chem Lett. 2019 Aug 15;29(16):2208-2217. doi: 10.1016/j.bmcl.2019.06.044. Epub 2019 Jun 22.

Abstract

Targeting nuclear receptor RORγ is recognized to be beneficial in multiple autoimmune disorders. We disclosed new indole analogues as potent RORγ inverse agonists. RO-2 as one of the potent and orally bioavailable compounds was evaluated in various models of autoimmune disorder. It showed potent suppression of downstream markers of RORγt activity in murine and human primary cells, ex vivo PD assay and in multiple animal models of autoimmune diseases. The results indicate the potential of these indole analogues as orally bioavailable small molecule inverse agonists of RORγt, efficacious in various Th17 driven models of autoimmune disorders.

Keywords: Autoimmune diseases; IL-17; Indole; Psoriasis; RORc; RORγ.

Publication types

  • Letter
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Autoimmune Diseases / drug therapy*
  • Humans
  • Indoles / chemistry*
  • Mice
  • Models, Molecular
  • Nuclear Receptor Subfamily 1, Group F, Member 3 / agonists*
  • Structure-Activity Relationship

Substances

  • Indoles
  • Nuclear Receptor Subfamily 1, Group F, Member 3
  • RORC protein, human