Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2010-9-21
pubmed:abstractText
Liver X receptor (LXR) is a nuclear receptor and a known regulator of lipid synthesis in rodents; however, the role of LXR in the regulation of fatty acid synthesis in bovine mammary epithelial cells has not yet been defined. The objective of the study was to evaluate the effect of LXR activation on the de novo synthesis of fatty acids in bovine mammary epithelial cells (BME-UV). Bovine mammary epithelial cells were treated with T0901317 (T09), an LXR agonist. Treatment of BME-UV with T09 increased the transcription of ATP-binding cassette transporter-G1, an LXR target gene, without modifying LXR? mRNA abundance. Acute and chronic treatment of BME-UV with T09 dramatically increased de novo fatty acid synthesis. Activation of LXR resulted in the upregulation of transcription, translation, and proteolytic cleavage of sterol regulatory element-binding protein-1 (SREBP1), a lipogenic transcription factor expressed in the bovine mammary gland. Additionally, the mRNA abundance of fatty acid synthase, an LXR and SREBP1 target gene, increased in response to LXR activation. Our data indicate that SREBP1 is regulated by LXR activation in BME-UV. Controlling LXR activation may prove useful in regulating milk fat production in lactating dairy cows.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1525-3198
pubmed:author
pubmed:copyrightInfo
Copyright © 2010 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
93
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4651-8
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Activation of liver X receptor (LXR) enhances de novo fatty acid synthesis in bovine mammary epithelial cells.
pubmed:affiliation
Department of Dairy Science, Virginia Polytechnic Institute and State University, Blacksburg 24061, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.