Cited by 174Regulation of Appetite and ObesityCytokine Signaling Pathways and InteractionsAdipokines, Inflammation, and Metabolic Diseases

The Long Form of the Leptin Receptor Regulates STAT5 and Ribosomal Protein S6 via Alternate Mechanisms

Open access
Gong, Yusong, Ishida-Takahashi, Ryoko, Villanueva, Eneida C., Fingar, Diane C., Münzberg, Heike, Myers, Martin G.·2007·Journal of Biological Chemistry

Abstract

The action of leptin via the long form of its receptor (LepRb) is central to the control of body energy homeostasis and neuroendocrine function, but the mechanisms by which LepRb regulates intracellular signaling have remained incompletely understood. Here we demonstrate that leptin stimulates the phosphorylation of STAT5 and ribosomal protein S6 in the hypothalamic arcuate nucleus in mice. In cultured cells, we investigate the mechanisms by which leptin regulates each of these pathways. Our analysis reveals a dominant role for LepRb Tyr(1077) (which we demonstrate to be phosphorylated during receptor activation) and a secondary role for LepRb Tyr(1138) in the acute phosphorylation of STAT5a and STAT5b. Tyr(1138) and STAT3 attenuate STAT5-dependent transcription over the long-term, however. In contrast, Tyr(985) (the LepRb phosphorylation site required for ERK activation) mediates the phosphorylation of the ribosomal S6 kinase (RSK) and S6, as well as cap-dependent translation. Thus, these data demonstrate the phosphorylation of Tyr(1077) on LepRb during receptor activation, substantiate the hypothalamic regulation of STAT5 and S6 by leptin, and define the alternate LepRb signaling pathways that mediate each of these signals and their effects in cultured cells. Dissecting the contributions of these individual pathways to leptin action will be important for our ultimate understanding of the processes that regulate energy balance in vivo.

Integrity signals

Registry

Crossref · 10.1074/jbc.m702838200

Cites

60 of 60 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?

  • Phosphorylation of Tyr1077 and Tyr1138 promotes recruitment, phosphorylation, and transcriptional activation of STAT5.

    “Phosphorylation of Tyr1077 and Tyr1138 promote the recruitment, phosphorylation and transcriptional activation of STAT5 (71)”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Gong, Y., Ishida-Takahashi, R., Villanueva, E. C., Fingar, D. C., Münzberg, H., & Myers, M. G.
Affiliations
University of Michigan (US)
Corresponding author
Myers, Martin G.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2007-10
Volume
282
Issue
42
Pages
31019-31027
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2065186264
Cited by
173
References
59
Citations by year
2026: 3 · 2025: 3 · 2024: 4 · 2023: 3 · 2022: 6 · 2021: 13 · 2020: 8 · 2019: 7 · 2018: 9 · 2017: 8 · 2016: 14 · 2015: 12 · 2014: 14 · 2013: 12 · 2012: 7
FWCI
4.89
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01dk078135-03)
  • National Cancer Institute (P30CA046592)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK20572, R01 DK57768, R01 DK78135, R01DK057768, R01-DK-56731, R01DK056731)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
Keywords
leptin, STAT5, ribosomal protein S6, receptor tyrosine phosphorylation, STAT3, RSK, cap-dependent translation, ERK signaling, hypothalamic arcuate nucleus, energy homeostasis, neuroendocrine regulation
MeSH terms
Animals, Arcuate Nucleus of Hypothalamus, Cell Line, Energy Metabolism, Humans, Nerve Tissue Proteins, Phosphorylation, Protein Processing, Post-Translational, RNA Caps, Transcription, Genetic, Ribosomal Protein S6 Kinases, Protein Isoforms, Leptin, MAP Kinase Signaling System, Ribosomal Protein S6, Extracellular Signal-Regulated MAP Kinases, STAT3 Transcription Factor, STAT5 Transcription Factor, Mice, Receptors, Leptin

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