A Selective Galactose–Coumarin-Derived Galectin-3 Inhibitor Demonstrates Involvement of Galectin-3-glycan Interactions in a Pulmonary Fibrosis Model

Vishal K. Rajput, Alison Mackinnon, Santanu Mandal, Patrick Collins, Helen Blanchard, Hakon Leffler, Tariq Sethi, Hans Schambye, Balaram Mukhopadhyay, Ulf J. Nilsson

Research output: Contribution to journalArticlepeer-review

Abstract

Synthesis of doubly 3-O-coumarylmethyl-substituted thiodigalactosides from bis-3-O-propargyl-thiodigalactoside resulted in highly selective and high affinity galectin-3 inhibitors. Mutant studies, structural analysis, and molecular modeling revealed that the coumaryl substituents stack onto arginine side chains. One inhibitor displayed efficacy in a murine model of bleomycin-induced lung fibrosis similar to that of a known nonselective galectin-1/galectin-3 inhibitor, which strongly suggests that blocking galectin-3 glycan recognition is an important antifibrotic drug target.

Original languageEnglish
Pages (from-to)8141-8147
Number of pages7
JournalJournal of Medicinal Chemistry
Volume59
Issue number17
DOIs
Publication statusPublished - 2016 Sept 8

Subject classification (UKÄ)

  • Medicinal Chemistry

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