Cited by 107Cytokine Signaling Pathways and InteractionsNF-κB Signaling PathwaysGenomics and Chromatin Dynamics

Interleukin-4/STAT6 Represses STAT1 and NF-κB-dependent Transcription through Distinct Mechanisms

Open access
Ohmori, Yoshihiro, Hamilton, Thomas A.·2000·Journal of Biological Chemistry

Abstract

STAT6 mediates interleukin-4 (IL-4)-dependent positive and negative regulation of inflammatory gene expression. In the present report we examined the molecular mechanisms involved in IL-4-induced repression of reporter gene transcription driven by STAT1 and/or NF-kappaB. Transient expression of STAT6 in a STAT6-deficient cell line (HEK 293) conferred sensitivity to IL-4 for STAT6-dependent transcription and for repression of interferon-gamma (IFNgamma)/STAT1- and/or tumor necrosis factor-alpha (TNFalpha)/NF-kappaB-driven reporter gene expression. In cells transfected with a deletion mutant of STAT6 lacking its transactivating domain, IL-4 could not mediate either positive or negative control of reporter gene expression. Overexpression of CREB-binding protein dramatically enhanced IL-4/STAT6-stimulated transcription and overcame IL-4-mediated repression of TNFalpha/NF-kappaB-dependent but not IFNgamma/STAT1-dependent transcription. A single amino acid change in the DNA-binding domain of STAT6 (H415A) selectively reduced the affinity of STAT6 for IL-4-responsive STAT sequence motifs (N4) without affecting the affinity for IFNgamma-responsive (GAS) sequences (N3) and, accordingly, eliminated transcription from an IL-4-responsive promoter. Interestingly, this mutation eliminated IL-4-mediated suppression of reporter gene transcription stimulated by TNFalpha/NF-kappaB but retained nearly full capacity to suppress IFNgamma/STAT1-stimulated transcription. Taken together these results demonstrate that STAT6 mediates suppression of STAT1 and NF-kappaB-dependent transcription by distinct mechanisms. Both processes are dependent upon the STAT6 transactivation domain and may involve sequestration of necessary but different transcriptional coactivator proteins. These two suppressive mechanisms are controlled differentially by the nature of the STAT6 DNA-binding site (i.e. N3 versus N4).

Integrity signals

Registry

Crossref · 10.1074/jbc.m006227200

Cites

68 of 68 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • There is cross-talk between the TREM2 and anti-inflammatory IL-4 signaling pathways, in that TREM2 knockdown decreases levels of the STAT6 transcription factor, which is downstream of IL-4.

    “Our results suggest that there is cross-talk between the TREM2 and anti-inflammatory IL-4 signaling pathways, in that TREM2 knockdown decreases levels of the STAT6 transcription factor, which is downstream of IL-4 (74).”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ohmori, Y., & Hamilton, T. A.
Affiliations
Cleveland Clinic (US)
Corresponding author
Ohmori, Yoshihiro
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2000-12
Volume
275
Issue
48
Pages
38095-38103
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2015491183
Cited by
106
References
68
Citations by year
2026: 3 · 2025: 3 · 2024: 2 · 2023: 4 · 2021: 4 · 2020: 5 · 2019: 1 · 2018: 3 · 2017: 2 · 2016: 4 · 2015: 2 · 2014: 6 · 2013: 5 · 2012: 3
FWCI
3.83
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
National Cancer Institute (CA62220, P01CA062220)
Topics
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
Keywords
IL-4, STAT6, STAT1, NF-κB, transcriptional repression, interferon-gamma, TNF-α, CREB-binding protein, DNA-binding domain, transcriptional coactivator, inflammatory gene expression
MeSH terms
Base Sequence, Cell Line, DNA-Binding Proteins, Humans, Interferon-gamma, Phosphoproteins, Transcription, Genetic, Tumor Necrosis Factor-alpha, Trans-Activators, Interleukin-4, NF-kappa B, DNA Primers, STAT6 Transcription Factor, Interferon Regulatory Factor-1

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review