Cited by 91Adipokines, Inflammation, and Metabolic DiseasesPancreatic function and diabetesRegulation of Appetite and Obesity

The effects of brain-derived neurotrophic factor on insulin signal transduction in the liver of diabetic mice

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Tsuchida, A., Nakagawa, T., Itakura, Y., Ichihara, J., Ogawa, W., Kasuga, M., Taiji, M., Noguchi, H.·2001·Diabetologia

Abstract

Aim/hypothesis We previously reported that repeated subcutaneous or intracerebroventricular injection of brain-derived neurotrophic factor (BDNF) reduces blood glucose concentrations in obese diabetic C57BL/KsJ-db/db mice. In this study, we assessed the effects of BDNF on insulin action in peripheral tissues of diabetic mice.Methods First, brain-derived neurotrophic factor (20 mg/kg) was subcutaneously given to male db/db mice for 14 days and then the insulin-stimulated tyrosine phosphorylation of insulin receptors and insulin-stimulated phosphatidylinositol (PI) 3-kinase activity in peripheral tissues was assessed. Second, we examined the effects of a single subcutaneous or intracerebroventricular brain-derived neurotrophic factor injection on insulin responsiveness in liver and skeletal muscle of streptozotocin (STZ)-induced diabetic mice. Third, the effects of brain-derived neurothrophic factor on insulin action were also examined in cultured cells.Results Repeated injection of BDNF to db/db mice for 14 days enhanced insulin-stimulated tyrosine phosphorylation of insulin receptors in liver and insulin-stimulated PI 3-kinase activity in liver, skeletal muscle and interscapular brown adipose tissue. We then examined the rapid effect of BDNF on insulin signalling in vivo. A single subcutaneous or intracerebroventricular injection of BDNF rapidly increased insulin-stimulated tyrosine phosphorylation of insulin receptors and PI 3-kinase activity in liver of STZ-mice. No direct effect of brain-derived neurothrophic factor was observed on insulin signalling in primary cultured hepatocytes, L6 muscle cells or 3T3-L1 adipocytes. Brain-derived neurothrophic factor did not affect either glucose uptake or gluconeogenesis in these cells.Conclusion/interpretation These data indicate that brain-derived neurothrophic factor rapidly enhances insulin signal transduction in liver and shows hypoglycaemic action in diabetic mice.

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Authors
Tsuchida, A., Nakagawa, T., Itakura, Y., Ichihara, J., Ogawa, W., Kasuga, M., Taiji, M., & Noguchi, H.
Affiliations
Kobe University (JP)
Venue
Diabetologia
Published
2001-04-25
Volume
44
Issue
5
Pages
555-566
ISSN
  • 0012-186X (ISSN-L)
  • 1432-0428
OpenAlex
W2028713882
Cited by
91
References
17
Citations by year
2026: 1 · 2025: 4 · 2024: 3 · 2023: 1 · 2022: 5 · 2021: 5 · 2020: 7 · 2019: 5 · 2018: 7 · 2017: 3 · 2016: 4 · 2015: 6 · 2014: 5 · 2013: 4 · 2012: 7
FWCI
2.53
Type
journal article
Language
en
Open access
Locations
  • Diabetologia (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
Keywords
brain-derived neurotrophic factor, insulin signaling, insulin resistance, type 2 diabetes, db/db mice, streptozotocin-induced diabetes, insulin receptor tyrosine phosphorylation, phosphatidylinositol 3-kinase, liver, skeletal muscle, brown adipose tissue, hypoglycemic effect, glucose uptake, gluconeogenesis
MeSH terms
Animals, Blood Glucose, Adipose Tissue, Brown, Cell Line, Cerebral Ventricles, Diabetes Mellitus, Experimental, Gluconeogenesis, Glucose, Humans, Injections, Intraventricular, Insulin, Kinetics, Liver, Male, Mice, Inbred C57BL, Mice, Mutant Strains, Receptor, Insulin, Recombinant Proteins, Signal Transduction, 3T3 Cells, Rats, Wistar, Muscle, Skeletal, Brain-Derived Neurotrophic Factor, Phosphatidylinositol 3-Kinases, Hepatocytes, Mice, Rats

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