The human beta-glucan receptor is widely expressed and functionally equivalent to murine Dectin-1 on primary cells

Janet A Willment, Andrew S J Marshall, Delyth M Reid, David L Williams, Simon Y C Wong, Siamon Gordon, Gordon D Brown

Research output: Contribution to journalArticlepeer-review

216 Citations (Scopus)


We identified the C-type-lectin-like receptor, Dectin-1, as the major receptor for fungal beta-glucans on murine macrophages and have demonstrated that it plays a significant role in the cellular response to these carbohydrates. Using two novel, isoform-specific mAb, we show here that human Dectin-1, the beta-glucan receptor (betaGR), is widely expressed and present on all monocyte populations as well as macrophages, DC, neutrophils and eosinophils. This receptor is also expressed on B cells and a subpopulation of T cells, demonstrating that human Dectin-1 is not myeloid restricted. Both major functional betaGR isoforms - betaGR-A and betaGR-B - were expressed by these cell populations in peripheral blood; however, only betaGR-B was significantly expressed on mature monocyte-derived macrophages and immature DC, suggesting cell-specific control of isoform expression. Inflammatory cells, recruited in vivo using a new skin-window technique, demonstrated that Dectin-1 expression was not significantly modulated on macrophages during inflammation, but is decreased on recruited granulocytes. Despite previous reports detailing the involvement of other beta-glucan receptors on mature human macrophages, we have demonstrated that Dectin-1 acted as the major beta-glucan receptor on these cells and contributed to the inflammatory response to these carbohydrates.
Original languageEnglish
Pages (from-to)1539-1547
Number of pages9
JournalEuropean Journal of Immunology
Issue number5
Early online date7 Apr 2005
Publication statusPublished - May 2005


  • Animals
  • Antibodies, Monoclonal
  • Dendritic Cells
  • Eosinophils
  • Flow Cytometry
  • Humans
  • Macrophages
  • Membrane Proteins
  • Mice
  • Nerve Tissue Proteins
  • Neutrophils
  • Receptors, Immunologic
  • Species Specificity


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