Dissection of signaling cascades through gp130 in vivo: reciprocal roles for STAT3- and SHP2-mediated signals in immune responses

Immunity. 2000 Jan;12(1):95-105. doi: 10.1016/s1074-7613(00)80162-4.

Abstract

We generated a series of knockin mouse lines, in which the cytokine receptor gp130-dependent STAT3 and/or SHP2 signals were disrupted, by replacing the mouse gp130 gene with human gp130 mutant cDNAs. The SHP2 signal-deficient mice (gp130F759/F759 were born normal but displayed splenomegaly and lymphadenopathy and an enhanced acute phase reaction. In contrast, the STAT3 signal-deficient mice (gp130FXQ/FXXQ) died perinatally, like the gp130-deficient mice (gp130D/D). The gp130F759/F759 mice showed prolonged gp130-induced STAT3 activation, indicating a negative regulatory role for SHP2. Th1-type cytokine production and IgG2a and IgG2b production were increased in the gp130F759/F759 mice, while they were decreased in the gp130FXXQ/FXXQ immune system. These results indicate that the balance of positive and negative signals generated through gp130 regulates the immune responses.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acute-Phase Reaction
  • Animals
  • Antigens, CD / genetics
  • Antigens, CD / immunology*
  • Astrocytes / cytology
  • Astrocytes / immunology
  • B-Lymphocytes / immunology
  • CD40 Antigens / immunology
  • Cell Differentiation
  • Cells, Cultured
  • Cytokine Receptor gp130
  • DNA-Binding Proteins / genetics
  • DNA-Binding Proteins / immunology*
  • Embryonic and Fetal Development
  • Hematopoiesis / genetics
  • Hemocyanins / immunology
  • Humans
  • Immunoglobulin G / immunology
  • Interferon-gamma / biosynthesis
  • Interleukin-4 / biosynthesis
  • Intracellular Signaling Peptides and Proteins
  • Lymphatic Diseases / immunology
  • Membrane Glycoproteins / genetics
  • Membrane Glycoproteins / immunology*
  • Mice
  • Mice, Knockout
  • Mice, Transgenic
  • Protein Tyrosine Phosphatase, Non-Receptor Type 11
  • Protein Tyrosine Phosphatase, Non-Receptor Type 6
  • Protein Tyrosine Phosphatases / genetics
  • Protein Tyrosine Phosphatases / immunology*
  • STAT3 Transcription Factor
  • Signal Transduction / immunology*
  • Splenomegaly / immunology
  • Trans-Activators / genetics
  • Trans-Activators / immunology*

Substances

  • 2,4-dinitrophenyl keyhole limpet hemocyanin
  • Antigens, CD
  • CD40 Antigens
  • DNA-Binding Proteins
  • IL6ST protein, human
  • Il6st protein, mouse
  • Immunoglobulin G
  • Intracellular Signaling Peptides and Proteins
  • Membrane Glycoproteins
  • STAT3 Transcription Factor
  • STAT3 protein, human
  • Stat3 protein, mouse
  • Trans-Activators
  • Cytokine Receptor gp130
  • Interleukin-4
  • Interferon-gamma
  • Hemocyanins
  • PTPN11 protein, human
  • PTPN6 protein, human
  • Protein Tyrosine Phosphatase, Non-Receptor Type 11
  • Protein Tyrosine Phosphatase, Non-Receptor Type 6
  • Protein Tyrosine Phosphatases
  • Ptpn11 protein, mouse
  • Ptpn6 protein, mouse