GATA-3 suppresses Th1 development by downregulation of Stat4 and not through effects on IL-12Rbeta2 chain or T-bet

Immunity. 2003 Mar;18(3):415-28. doi: 10.1016/s1074-7613(03)00057-8.

Abstract

To further understand the interaction among GATA-3, Stat4, and T-bet in helper T cell development, we first showed that retroviral expression of GATA-3 in developing Th1 cells suppresses Th1 development through downregulation of Stat4 rather through downregulation of the IL-12Rbeta2 chain. Correspondingly, Stat4 levels are greatly suppressed during physiological Th2 development. Then, using cells doubly infected with GFP- and YFP-expressing retroviruses, we showed that retroviral GATA-3 expression in developing Th1 cells does not block Th1 development in cells coexpressing Stat4 but does so in cells coexpressing T-bet. Finally, we showed that retroviral Stat4 expression could facilitate Th2-->Th1 conversion in cells bearing an IL-12Rbeta2 transgene, even in cells lacking T-bet. These findings reassert that Stat4 signaling is a central element of Th1/Th2 development.

MeSH terms

  • Animals
  • Cell Differentiation
  • DNA-Binding Proteins / genetics*
  • DNA-Binding Proteins / immunology*
  • DNA-Binding Proteins / metabolism
  • Down-Regulation
  • GATA3 Transcription Factor
  • Gene Expression
  • Interferon-gamma / biosynthesis
  • Interleukin-13 / metabolism
  • Interleukin-4 / metabolism
  • Mice
  • Mice, Inbred C57BL
  • Mice, Knockout
  • Mice, Transgenic
  • RNA, Messenger / genetics
  • RNA, Messenger / metabolism
  • Receptors, Interleukin / genetics
  • Receptors, Interleukin-12
  • Retroviridae / genetics
  • STAT4 Transcription Factor
  • T-Box Domain Proteins
  • Th1 Cells / cytology
  • Th1 Cells / immunology*
  • Th1 Cells / metabolism
  • Th2 Cells / cytology
  • Th2 Cells / immunology
  • Th2 Cells / metabolism
  • Trans-Activators / genetics*
  • Trans-Activators / immunology*
  • Trans-Activators / metabolism
  • Transcription Factors / genetics

Substances

  • DNA-Binding Proteins
  • GATA3 Transcription Factor
  • Gata3 protein, mouse
  • Interleukin-13
  • RNA, Messenger
  • Receptors, Interleukin
  • Receptors, Interleukin-12
  • STAT4 Transcription Factor
  • Stat4 protein, mouse
  • T-Box Domain Proteins
  • T-box transcription factor TBX21
  • Trans-Activators
  • Transcription Factors
  • Interleukin-4
  • Interferon-gamma