Cited by 232Metabolism, Diabetes, and CancerDiabetes, Cardiovascular Risks, and LipoproteinsLipid metabolism and biosynthesis

The DOI matches its Crossref record; 52 of the 53 references it cites were found in a registry or an index.

Downregulation of Diacylglycerol Kinase Delta Contributes to Hyperglycemia-Induced Insulin Resistance

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Abstract

Type 2 (non-insulin-dependent) diabetes mellitus is a progressive metabolic disorder arising from genetic and environmental factors that impair beta cell function and insulin action in peripheral tissues. We identified reduced diacylglycerol kinase delta (DGKdelta) expression and DGK activity in skeletal muscle from type 2 diabetic patients. In diabetic animals, reduced DGKdelta protein and DGK kinase activity were restored upon correction of glycemia. DGKdelta haploinsufficiency increased diacylglycerol content, reduced peripheral insulin sensitivity, insulin signaling, and glucose transport, and led to age-dependent obesity. Metabolic flexibility, evident by the transition between lipid and carbohydrate utilization during fasted and fed conditions, was impaired in DGKdelta haploinsufficient mice. We reveal a previously unrecognized role for DGKdelta in contributing to hyperglycemia-induced peripheral insulin resistance and thereby exacerbating the severity of type 2 diabetes. DGKdelta deficiency causes peripheral insulin resistance and metabolic inflexibility. These defects in glucose and energy homeostasis contribute to mild obesity later in life.

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Crossref · 10.1016/j.cell.2007.12.035

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Metadata

Authors
Chibalin, A. V., Leng, Y., Vieira, E., Krook, A., Björnholm, M., Long, Y. C., Kotova, O., Zhong, Z., Sakane, F., Steiler, T., Nylén, C., Wang, J., Laakso, M., Topham, M. K., Gilbert, M., Wallberg-Henriksson, H., & Zierath, J. R.
Affiliations
  • Karolinska Institutet (SE)
  • University of Eastern Finland (FI)
Corresponding author
Zierath, Juleen R.
Venue
Cell
Publisher
Elsevier BV
Published
2008-02
Volume
132
Issue
3
Pages
375-386
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2066159172
Cited by
232
References
53
Citations by year
2026: 3 · 2025: 7 · 2024: 10 · 2023: 9 · 2022: 6 · 2021: 9 · 2020: 11 · 2019: 11 · 2018: 14 · 2017: 12 · 2016: 17 · 2015: 12 · 2014: 18 · 2013: 18 · 2012: 23
FWCI
7.14
Type
journal article
Language
en
Update notices
erratum (2022-01-20)
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
Keywords
type 2 diabetes, hyperglycemia, insulin resistance, skeletal muscle, diacylglycerol, insulin signaling, glucose transport, metabolic inflexibility, obesity, energy homeostasis, glucose metabolism
MeSH terms
Adult, Aging, Animals, Diabetes Mellitus, Type 2, Diglycerides, Energy Metabolism, Glucose, Humans, Hyperglycemia, Insulin Resistance, Male, Obesity, Protein Kinase C, Signal Transduction, Down-Regulation, Rats, Wistar, Muscle, Skeletal, Diacylglycerol Kinase, Gene Expression Profiling, Lipid Metabolism, Mice, Rats

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