Cutting edge: Differential requirements for Stat4 in expression of glycosyltransferases responsible for selectin ligand formation in Th1 cells

S. J. White, G. H. Underhill, M. H. Kaplan, G. S. Kansas

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

A role for Stat4 in IL-12-induced up-regulation of selectin ligands on Th1 cells was explored. Th1 cells generated from Stat4-/- mice exhibited no IL-12-inducible P-selectin ligands, no up-regulation of core 2 β1,6-glucosaminyltransferase I (C2GlcNAcT-I), and low levels of the Th1 transcription factor T-bet. In contrast, Stat4-/- Th1 cells exhibited only a partial defect in expression of IL-12-inducible E-selectin ligands and expressed equivalently high levels of α1,3-fucosyltransferase VII (FucT-VII) as wild-type Th1 cells. FucT-VII expression was induced by T cell activation, and was enhanced by IL-12 independently of Stat4, whereas C2GlcNAcT-I up-regulation was mediated exclusively by IL-12, acting through Stat4. These data show that FucT-VII and C2GlcNAcT-I are controlled through distinct pathways and imply the existence of at least one other IL-12-inducible glycosyltransferase required for E-selectin and possibly P-selectin ligand formation in Th1 cells.

Original languageEnglish (US)
Pages (from-to)628-631
Number of pages4
JournalJournal of Immunology
Volume167
Issue number2
DOIs
StatePublished - Jul 15 2001

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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