Cited by 1,302Pancreatic function and diabetesMetabolism, Diabetes, and CancerDiabetes and associated disorders

Dual Roles for Glucokinase in Glucose Homeostasis as Determined by Liver and Pancreatic β Cell-specific Gene Knock-outs Using Cre Recombinase

Open access
Postic, Catherine, Shiota, Masakazu, Niswender, Kevin D., Jetton, Thomas L., Chen, Yeujin, Moates, J. Michael, Shelton, Kathy D., Lindner, Jill +2 more·1999·Journal of Biological Chemistry

Abstract

Glucokinase (GK) gene mutations cause diabetes mellitus in both humans and mouse models, but the pathophysiological basis is only partially defined. We have used cre-loxP technology in combination with gene targeting to perform global, beta cell-, and hepatocyte-specific gene knock-outs of this enzyme in mice. Gene targeting was used to create a triple-loxed gk allele, which was converted by partial or total Cre-mediated recombination to a conditional allele lacking neomycin resistance, or to a null allele, respectively. beta cell- and hepatocyte-specific expression of Cre was achieved using transgenes that contain either insulin or albumin promoter/enhancer sequences. By intercrossing the transgenic mice that express Cre in a cell-specific manner with mice containing a conditional gk allele, we obtained animals with either a beta cell or hepatocyte-specific knock-out of GK. Animals either globally deficient in GK, or lacking GK just in beta cells, die within a few days of birth from severe diabetes. Mice that are heterozygous null for GK, either globally or just in the beta cell, survive but are moderately hyperglycemic. Mice that lack GK only in the liver are only mildly hyperglycemic but display pronounced defects in both glycogen synthesis and glucose turnover rates during a hyperglycemic clamp. Interestingly, hepatic GK knock-out mice also have impaired insulin secretion in response to glucose. These studies indicate that deficiencies in both beta cell and hepatic GK con…

Integrity signals

Registry

Crossref · 10.1074/jbc.274.1.305

Cites

1 of 1 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?

  • TCDD toxicity and ductus venosus closure require AHR activation in hepatocytes and endothelial cells, respectively.

    “To this end, Ahrfx was crossed to hepatocyte-specific (CreAlb) or endothelial-specific (CreTek) Cre recombinase to demonstrate that TCDD toxicity and the closure of the DV require receptor activation in hepatocytes and endothelial cells, respectively (Kisanuki et al., 2001; Postic et al., 1999; Walisser et al., 2005).”

    From Rodent Genetic Models of Ah Receptor Signaling (2021) · cites this paper as Postic et al., 1999

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Postic, C., Shiota, M., Niswender, K. D., Jetton, T. L., Chen, Y., Moates, J. M., Shelton, K. D., Lindner, J., Cherrington, A. D., & Magnuson, M. A.
Affiliations
Vanderbilt University (US)
Corresponding author
Magnuson, Mark A.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1999-01
Volume
274
Issue
1
Pages
305-315
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1995856733
Cited by
1,302
References
1
Citations by year
2026: 23 · 2025: 42 · 2024: 57 · 2023: 64 · 2022: 50 · 2021: 70 · 2020: 58 · 2019: 54 · 2018: 51 · 2017: 54 · 2016: 49 · 2015: 68 · 2014: 74 · 2013: 67 · 2012: 50
FWCI
28.41
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Cancer Institute (CA68485, P30CA068485)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK-42612, DK42502, R01DK042612)
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
Keywords
glucokinase, glucose homeostasis, beta-cell-specific knockout, hepatocyte-specific knockout, MODY2, diabetes mellitus, hyperglycemia, glycogen synthesis, glucose turnover, insulin secretion
MeSH terms
Albumins, Alleles, Animals, Base Sequence, Glucokinase, Glucose, Homeostasis, Insulin, Islets of Langerhans, Liver, Viral Proteins, Gene Deletion, DNA Primers, Mice, Knockout, Transgenes, Integrases, Mice

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