Cited by 321Pancreatic function and diabetesDiabetes and associated disordersDiabetes Treatment and Management

Defective insulin secretion in hepatocyte nuclear factor 1alpha-deficient mice.

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Pontoglio, M, Sreenan, S, Roe, M, Pugh, W, Ostrega, D, Doyen, A, Pick, A J, Baldwin, A +7 more·1998·Journal of Clinical Investigation

Abstract

Mutations in the gene for the transcription factor hepatocyte nuclear factor (HNF) 1alpha cause maturity-onset diabetes of the young (MODY) 3, a form of diabetes that results from defects in insulin secretion. Since the nature of these defects has not been defined, we compared insulin secretory function in heterozygous [HNF-1alpha (+/-)] or homozygous [HNF-1alpha (-/-)] mice with null mutations in the HNF-1alpha gene with their wild-type littermates [HNF-1alpha (+/+)]. Blood glucose concentrations were similar in HNF-1alpha (+/+) and (+/-) mice (7.8+/-0.2 and 7.9+/-0.3 mM), but were significantly higher in the HNF-1alpha (-/-) mice (13.1+/-0.7 mM, P < 0.001). Insulin secretory responses to glucose and arginine in the perfused pancreas and perifused islets from HNF-1alpha (-/-) mice were < 15% of the values in the other two groups and were associated with similar reductions in intracellular Ca2+ responses. These defects were not due to a decrease in glucokinase or insulin gene transcription. beta cell mass adjusted for body weight was not reduced in the (-/-) animals, although pancreatic insulin content adjusted for pancreas weight was slightly lower (0.06+/-0.01 vs. 0.10+/-0.01 microg/mg, P < 0.01) than in the (+/+) animals. In summary, a null mutation in the HNF-1alpha gene in homozygous mice leads to diabetes due to alterations in the pathways that regulate beta cell responses to secretagogues including glucose and arginine. These results provide further evidence in support of a key role for HNF-1alpha in the maintenance of normal beta cell function.

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  • Loss of HNF1α results in almost abolished insulin secretion, likely due to a decreased response to intracellular calcium.

    “it is the loss of HNF1α resulting in an almost abolished insulin secretion, likely due to a decreased response to intracellular calcium.”

    From Pancreatic regulation of glucose homeostasis. (2016) · cites this paper as [176]

    The Discussion reports an 87% reduction in insulin secretion in homozygous HNF-1α-deficient mice, supporting the description of an almost abolished response. The section on changes in islet intracellular Ca²⁺ reports a reduced calcium response to glucose, not a decreased insulin-secretory response to intracellular calcium; it does not establish the proposed mechanism as phrased. (LLM, conf=0.85)

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  • HNF1α is important in maintaining β-cell function and is involved in maturity-onset diabetes of the young (MODY3).

    “These findings support the importance of HNF1α in maintaining β-cell function176 and its involvement in maturity-onset diabetes of the young (MODY3).177”

    From Pancreatic regulation of glucose homeostasis. (2016) · cites this paper as [176]

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Research works printed but not linked: 1

  1. Weibel, E.R. 1978. Stereologic methods. In Practical Methods for Bio- logic Morphometry. Vol 1. Academic Press Ltd., London. 101-161.

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Authors
Pontoglio, M., Sreenan, S., Roe, M., Pugh, W., Ostrega, D., Doyen, A., Pick, A. J., Baldwin, A., Velho, G., Froguel, P., Levisetti, M., Bonner-Weir, S., Bell, G. I., Yaniv, M., & Polonsky, K. S.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • Institut Pasteur de Lille (FR)
  • Inserm (FR)
  • Howard Hughes Medical Institute (US)
Venue
Journal of Clinical Investigation
Published
1998-05-15
Volume
101
Issue
10
Pages
2215-2222
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2095311108
Cited by
321
References
23
Citations by year
2026: 4 · 2025: 8 · 2024: 4 · 2023: 3 · 2022: 14 · 2021: 11 · 2020: 7 · 2019: 7 · 2018: 5 · 2017: 8 · 2016: 7 · 2015: 16 · 2014: 7 · 2013: 4 · 2012: 11
FWCI
21.87
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5p01dk044840-10)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK 44840, DK-31842, DK 20595)
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
HNF1A, maturity-onset diabetes of the young, MODY3, insulin secretion, beta-cell function, glucose-stimulated insulin secretion, arginine-stimulated insulin secretion, intracellular calcium, hyperglycemia, insulin content, glucokinase, insulin gene transcription
MeSH terms
Insulin Secretion, Animals, Arginine, Blood Glucose, Body Weight, Calcium, Diabetes Mellitus, Type 2, DNA-Binding Proteins, Gene Expression Regulation, Glucose, Heterozygote, Homozygote, Immunohistochemistry, Insulin, Islets of Langerhans, Nuclear Proteins, Organ Size, Pancreas, RNA, Messenger, Transcription Factors, Mice, Knockout, Mice, Hepatocyte Nuclear Factor 1, Hepatocyte Nuclear Factor 1-alpha, Hepatocyte Nuclear Factor 1-beta

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