Kinetics and Cellular Site of Glycolipid Loading Control the Outcome of Natural Killer T Cell Activation

  • JS Im
  • , P Arora
  • , G Bricard
  • , A Molano
  • , MM Venkataswamy
  • , I Baine
  • , ES Jerud
  • , MF Goldberg
  • , A Baena
  • , KOA Yu
  • , RM Ndonye
  • , AR Howell
  • , W Yuan
  • , P Cresswell
  • , YT Chang
  • , Petr Illarionov
  • , Gurdyal Besra
  • , SA Porcelli

Research output: Contribution to journalArticlepeer-review

140 Citations (Scopus)
522 Downloads (Pure)

Abstract

CD1d-restricted natural killer T cells (NKT cells) possess a wide range of effector and regulatory activities that are related to their ability to secrete both T helper 1 (Th1) cell- and Th2 cell-type cytokines. We analyzed presentation of NKT cell activating α galactosylceramide (αGalCer) analogs that give predominantly Th2 cell-type cytokine responses to determine how ligand structure controls the outcome of NKT cell activation. Using a monoclonal antibody specific for αGalCer-CD1d complexes to visualize and quantitate glycolipid presentation, we found that Th2 cell-type cytokinebiasing ligands were characterized by rapid and direct loading of cell-surface CD1d proteins. Complexes formed by association of these Th2 cell-type cytokine-biasing αGalCer analogs with CD1d showed a distinctive exclusion from ganglioside-enriched, detergent-resistant plasma membrane microdomains of antigen-presenting cells. These findings help to explain how subtle alterations in glycolipid ligand structure can control the balance of proinflammatory and antiinflammatory activities of NKT cells.
Original languageEnglish
Pages (from-to)888-898
Number of pages11
JournalImmunity
Volume30
Issue number6
DOIs
Publication statusPublished - 1 Jun 2009

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