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Cocaine- and amphetamine-regulated transcript is expressed in adipocytes and regulate lipid- and glucose homeostasis.

Banke, Elin LU ; Riva, Matteo LU ; Shcherbina, Liliya LU ; Wierup, Nils LU and Degerman, Eva LU orcid (2013) In Regulatory Peptides 182(Jan.,11). p.35-40
Abstract
Cocaine- and amphetamine-regulated transcript (CART) is a regulatory peptide expressed in the nervous system and in endocrine cells, e.g. in pancreatic islets. CART deficient mice exhibit islet dysfunction, impaired insulin secretion and increased body weight. A mutation in the CART gene in humans is associated with reduced metabolic rate, obesity and diabetes. Furthermore, CART is upregulated in islets of type-2 diabetic rats and regulates islet hormone secretion in vitro. While the function of CART in the nervous system has been extensively studied, there is no information on its expression or function in white adipose tissue. CART mRNA and protein were found to be expressed in both subcutaneous and visceral white adipose tissues from... (More)
Cocaine- and amphetamine-regulated transcript (CART) is a regulatory peptide expressed in the nervous system and in endocrine cells, e.g. in pancreatic islets. CART deficient mice exhibit islet dysfunction, impaired insulin secretion and increased body weight. A mutation in the CART gene in humans is associated with reduced metabolic rate, obesity and diabetes. Furthermore, CART is upregulated in islets of type-2 diabetic rats and regulates islet hormone secretion in vitro. While the function of CART in the nervous system has been extensively studied, there is no information on its expression or function in white adipose tissue. CART mRNA and protein were found to be expressed in both subcutaneous and visceral white adipose tissues from rat and man. Stimulating rat primary adipocytes with CART significantly potentiated isoprenaline-induced lipolysis, and hormone sensitive lipase activation (phosphorylation of Ser 563). On the other hand, CART significantly potentiated the inhibitory effect of insulin on isoprenaline-induced lipolysis. CART inhibited insulin-induced glucose uptake, which was associated with inhibition of PKB phosphorylation. In conclusion, CART is a novel constituent of human and rat adipocytes and affects several biological processes central in both lipid- and glucose homeostasis. Depending on the surrounding conditions, the effects of CART are insulin-like or insulin-antagonistic. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Regulatory Peptides
volume
182
issue
Jan.,11
pages
35 - 40
publisher
Elsevier
external identifiers
  • wos:000317455200006
  • pmid:23318496
  • scopus:84873958610
  • pmid:23318496
ISSN
1873-1686
DOI
10.1016/j.regpep.2012.12.011
language
English
LU publication?
yes
id
605c1597-9176-43d4-b10c-f8f85517672a (old id 3438729)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/23318496?dopt=Abstract
date added to LUP
2016-04-01 10:02:55
date last changed
2022-03-27 04:22:58
@article{605c1597-9176-43d4-b10c-f8f85517672a,
  abstract     = {{Cocaine- and amphetamine-regulated transcript (CART) is a regulatory peptide expressed in the nervous system and in endocrine cells, e.g. in pancreatic islets. CART deficient mice exhibit islet dysfunction, impaired insulin secretion and increased body weight. A mutation in the CART gene in humans is associated with reduced metabolic rate, obesity and diabetes. Furthermore, CART is upregulated in islets of type-2 diabetic rats and regulates islet hormone secretion in vitro. While the function of CART in the nervous system has been extensively studied, there is no information on its expression or function in white adipose tissue. CART mRNA and protein were found to be expressed in both subcutaneous and visceral white adipose tissues from rat and man. Stimulating rat primary adipocytes with CART significantly potentiated isoprenaline-induced lipolysis, and hormone sensitive lipase activation (phosphorylation of Ser 563). On the other hand, CART significantly potentiated the inhibitory effect of insulin on isoprenaline-induced lipolysis. CART inhibited insulin-induced glucose uptake, which was associated with inhibition of PKB phosphorylation. In conclusion, CART is a novel constituent of human and rat adipocytes and affects several biological processes central in both lipid- and glucose homeostasis. Depending on the surrounding conditions, the effects of CART are insulin-like or insulin-antagonistic.}},
  author       = {{Banke, Elin and Riva, Matteo and Shcherbina, Liliya and Wierup, Nils and Degerman, Eva}},
  issn         = {{1873-1686}},
  language     = {{eng}},
  number       = {{Jan.,11}},
  pages        = {{35--40}},
  publisher    = {{Elsevier}},
  series       = {{Regulatory Peptides}},
  title        = {{Cocaine- and amphetamine-regulated transcript is expressed in adipocytes and regulate lipid- and glucose homeostasis.}},
  url          = {{https://lup.lub.lu.se/search/files/1512624/4024141.pdf}},
  doi          = {{10.1016/j.regpep.2012.12.011}},
  volume       = {{182}},
  year         = {{2013}},
}