5-amino-imidazole carboxamide riboside increases glucose transport and cell-surface GLUT4 content in skeletal muscle from subjects with type 2 diabetes

H A Koistinen, D Galuska, A V Chibalin, J Yang, J R Zierath, G D Holman, H Wallberg-Henriksson

Research output: Contribution to journalArticle

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Abstract

AMP-activated protein kinase (AMPK) activation by AICAR. (5-andno-imidazole carboxamide riboside) is correlated with increased glucose transport in rodent skeletal muscle via an insulin-independent pathway. We determined in vitro effects of insulin and/or AICAR exposure on glucose transport and cell-surface GLUT4 content in skeletal muscle from nondiabetic men and men with type 2 diabetes. AICAR increased glucose transport in a dose-dependent manner in healthy subjects. Insulin and AICAR increased glucose transport and cell-surface GLUT4 content to a similar extent in control subjects. In contrast, insulin- and AICAR-stimulated responses on glucose transport and cell-surface GLUT4 content were impaired in subjects with type 2 diabetes. Importantly, exposure of type 2 diabetic skeletal muscle to a combination of insulin and AICAR increased glucose transport and cell-surface GLUT4 content to levels achieved in control subjects. AICAR increased AMPK and acetyl-CoA carboxylase phosphorylation to a similar extent in skeletal muscle from subjects with type 2 diabetes and nondiabetic subjects. Our studies highlight the potential importance of AMPK-dependent pathways in the regulation of GLUT4 and glucose transport activity,in insulin-resistant skeletal muscle. Activation of AMPK is an attractive strategy to enhance glucose transport through increased cell surface GLUT4 content in insulin-resistant skeletal muscle.
Original languageEnglish
Pages (from-to)1066-1072
Number of pages7
JournalDiabetes
Volume52
Issue number5
Publication statusPublished - 2003

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Type 2 Diabetes Mellitus
Skeletal Muscle
Glucose
Insulin
AMP-Activated Protein Kinases
Acetyl-CoA Carboxylase
imidazole
AICA ribonucleotide
Rodentia
Healthy Volunteers
Phosphorylation

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Koistinen, H. A., Galuska, D., Chibalin, A. V., Yang, J., Zierath, J. R., Holman, G. D., & Wallberg-Henriksson, H. (2003). 5-amino-imidazole carboxamide riboside increases glucose transport and cell-surface GLUT4 content in skeletal muscle from subjects with type 2 diabetes. Diabetes, 52(5), 1066-1072.

5-amino-imidazole carboxamide riboside increases glucose transport and cell-surface GLUT4 content in skeletal muscle from subjects with type 2 diabetes. / Koistinen, H A; Galuska, D; Chibalin, A V; Yang, J; Zierath, J R; Holman, G D; Wallberg-Henriksson, H.

In: Diabetes, Vol. 52, No. 5, 2003, p. 1066-1072.

Research output: Contribution to journalArticle

Koistinen, HA, Galuska, D, Chibalin, AV, Yang, J, Zierath, JR, Holman, GD & Wallberg-Henriksson, H 2003, '5-amino-imidazole carboxamide riboside increases glucose transport and cell-surface GLUT4 content in skeletal muscle from subjects with type 2 diabetes', Diabetes, vol. 52, no. 5, pp. 1066-1072.
Koistinen, H A ; Galuska, D ; Chibalin, A V ; Yang, J ; Zierath, J R ; Holman, G D ; Wallberg-Henriksson, H. / 5-amino-imidazole carboxamide riboside increases glucose transport and cell-surface GLUT4 content in skeletal muscle from subjects with type 2 diabetes. In: Diabetes. 2003 ; Vol. 52, No. 5. pp. 1066-1072.
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AB - AMP-activated protein kinase (AMPK) activation by AICAR. (5-andno-imidazole carboxamide riboside) is correlated with increased glucose transport in rodent skeletal muscle via an insulin-independent pathway. We determined in vitro effects of insulin and/or AICAR exposure on glucose transport and cell-surface GLUT4 content in skeletal muscle from nondiabetic men and men with type 2 diabetes. AICAR increased glucose transport in a dose-dependent manner in healthy subjects. Insulin and AICAR increased glucose transport and cell-surface GLUT4 content to a similar extent in control subjects. In contrast, insulin- and AICAR-stimulated responses on glucose transport and cell-surface GLUT4 content were impaired in subjects with type 2 diabetes. Importantly, exposure of type 2 diabetic skeletal muscle to a combination of insulin and AICAR increased glucose transport and cell-surface GLUT4 content to levels achieved in control subjects. AICAR increased AMPK and acetyl-CoA carboxylase phosphorylation to a similar extent in skeletal muscle from subjects with type 2 diabetes and nondiabetic subjects. Our studies highlight the potential importance of AMPK-dependent pathways in the regulation of GLUT4 and glucose transport activity,in insulin-resistant skeletal muscle. Activation of AMPK is an attractive strategy to enhance glucose transport through increased cell surface GLUT4 content in insulin-resistant skeletal muscle.

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