De Novo Macrocyclic Peptide Inhibitors of Hepatitis B Virus Cellular Entry

Cell Chem Biol. 2018 Jul 19;25(7):906-915.e5. doi: 10.1016/j.chembiol.2018.04.011. Epub 2018 May 17.

Abstract

Hepatitis B virus (HBV) constitutes a significant public health burden, and currently available treatment options are not generally curative, necessitating the development of new therapeutics. Here we have applied random non-standard peptide integrated discovery (RaPID) screening to identify small macrocyclic peptide inhibitors of HBV entry that target the cell-surface receptor for HBV, sodium taurocholate cotransporting polypeptide (NTCP). In addition to their anti-HBV activity, these molecules also inhibit cellular entry by the related hepatitis D virus (HDV), and are active against diverse strains of HBV (including clinically relevant nucleos(t)ide analog-resistant and vaccine escaping strains). Importantly, these macrocyclic peptides, in contrast to other NTCP-binding HBV entry inhibitors, exhibited no inhibition of NTCP-mediated bile acid uptake, making them appealing candidates for therapeutic development.

Keywords: HBV; HDV; NTCP; RaPID; bile acid; cyclosporin; entry; inhibitor; macrocyclic; transporter.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antiviral Agents / chemistry
  • Antiviral Agents / pharmacology*
  • Hep G2 Cells
  • Hepatitis B virus / drug effects*
  • Hepatitis B virus / metabolism
  • Humans
  • Macrocyclic Compounds / chemistry
  • Macrocyclic Compounds / pharmacology*
  • Microbial Sensitivity Tests
  • Molecular Conformation
  • Peptides / chemistry
  • Peptides / pharmacology*
  • Receptors, Cell Surface / antagonists & inhibitors*
  • Receptors, Cell Surface / metabolism
  • Taurocholic Acid / chemistry
  • Taurocholic Acid / pharmacology

Substances

  • Antiviral Agents
  • Macrocyclic Compounds
  • Peptides
  • Receptors, Cell Surface
  • Taurocholic Acid