Cited by 163Pancreatic function and diabetesDiabetes and associated disordersDiabetes Treatment and Management

Expansion of adult β-cell mass in response to increased metabolic demand is dependent on HNF-4α

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Gupta, Rana K., Gao, Nan, Gorski, Regina K., White, Peter, Hardy, Olga T., Rafiq, Kiran, Brestelli, John E., Chen, Guang +2 more·2007·Genes & Development

Abstract

The failure to expand functional pancreatic β-cell mass in response to increased metabolic demand is a hallmark of type 2 diabetes. Lineage tracing studies indicate that replication of existing β-cells is the principle mechanism for β-cell expansion in adult mice. Here we demonstrate that the proliferative response of β-cells is dependent on the orphan nuclear receptor hepatocyte nuclear factor-4 α ( HNF-4 α), the gene that is mutated in Maturity-Onset Diabetes of the Young 1 (MODY1). Computational analysis of microarray expression profiles from isolated islets of mice lacking HNF-4 α in pancreatic β-cells reveals that HNF-4α regulates selected genes in the β-cell, many of which are involved in proliferation. Using a physiological model of β-cell expansion, we show that HNF-4 α is required for β-cell replication and the activation of the Ras/ERK signaling cascade in islets. This phenotype correlates with the down-regulation of suppression of tumorigenicity 5 ( ST5 ) in HNF-4 α mutants, which we identify as a novel regulator of ERK phosphorylation in β-cells and a direct transcriptional target of HNF-4α in vivo. Together, these results indicate that HNF-4α is essential for the physiological expansion of adult β-cell mass in response to increased metabolic demand.

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  • Erk activation accompanies mouse β-cell expansion in pregnancy.

    “Our work also suggests that Mapk/Erk regulation links Pdgfr activation to Ezh2 induction and β-cell proliferation, consistent with studies demonstrating Erk regulation of Ezh2 in cancer cells33, and Erk activation that accompanies mouse β-cell expansion in pregnancy34.”
  • HNF-4α is required in β-cells for the proliferative response of pregnancy through activation of the Ras/ERK signaling cascade, at least in part through regulation of ST5.

    “Additionally, a recent study showed that the orphan nuclear receptor hepatocyte nuclear factor-4 (HNF-4)α is required in β-cells for the proliferative response of pregnancy through activation of the Ras/ERK signaling cascade, at least in part through the regulation of the guanine nucleotide exchange factor ST5 (Figure 3) [55].”

    From Expansion of β-cell mass in response to pregnancy (2010) · cites this paper as [55]

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Authors
Gupta, R. K., Gao, N., Gorski, R. K., White, P., Hardy, O. T., Rafiq, K., Brestelli, J. E., Chen, G., Stoeckert, C. J., & Kaestner, K. H.
Affiliations
University of Pennsylvania (US)
Venue
Genes & Development
Published
2007-04-01
Volume
21
Issue
7
Pages
756-769
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2158386353
Cited by
161
References
62
Citations by year
2026: 3 · 2025: 4 · 2024: 4 · 2023: 3 · 2022: 4 · 2021: 9 · 2020: 4 · 2019: 5 · 2018: 6 · 2017: 6 · 2016: 6 · 2015: 9 · 2014: 9 · 2013: 17 · 2012: 10
Type
posted content
Language
en
Open access
Locations
  • Genes & Development (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Pennsylvania (NIH DK19525)
  • National Institutes of Health (DK 19525)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK 19525, DK-56947, R24DK056947, DK-55342, R01DK055342, U01DK056947, P30DK019525)
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
Keywords
HNF4α, beta-cell proliferation, type 2 diabetes, MODY1, ST5, Ras/ERK signaling, ERK1/2 phosphorylation, orphan nuclear receptor, transcriptional regulation, metabolic demand, islets
MeSH terms
Animals, Base Sequence, DNA-Binding Proteins, Female, Islets of Langerhans, Mice, Transgenic, Models, Genetic, Molecular Sequence Data, Pregnancy, Transcription, Genetic, Signal Transduction, ras Proteins, Tumor Suppressor Proteins, Extracellular Signal-Regulated MAP Kinases, Cell Proliferation, Insulin-Secreting Cells, Mice, Hepatocyte Nuclear Factor 4

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