Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2006-4-13
pubmed:abstractText
This study compared the adipogenic potential of porcine stromal-vascular (S-V) cells from semitendinosus muscles and s.c. adipose tissue using thiazolidinediones. Stromal-vascular cells were obtained from s.c. adipose tissue and both semitendinosus muscles from 5- to 7-d-old pigs after collagenase digestion. Preadipocyte recruitment was measured using immunohistological evaluation for AD-3, a preadipocyte antibody. Ciglitazone increased the number of preadipocytes in adipose tissue but not semitendinosus muscle S-V cell cultures, whereas 10 microM troglitazone increased preadipocyte abundance in both adipose and muscle S-V cultures by approximately 3-fold (P < 0.05). Increasing troglitazone doses did not further increase preadipocyte number. Increases in preadipocytes were paralleled by increases in CCAAT/enhancer-binding protein alpha (C/EBPalpha) and peroxisome proliferator-activated receptor gamma (PPARgamma) positive cells in adipose tissue S-V cultures, whereas PPARgamma-reactive but not C/EBPalpha-reactive cells were increased in muscle S-V cultures treated with 10 microM troglitazone. Additionally, troglitazone treatment did not increase lipid content in s.c. adipose tissue or muscle S-V cell cultures. Cells plated on laminin-precoated culture dishes were used to determine whether troglitazone influenced adipogenesis or myogenesis in cocultures from muscle S-V cells. There was no effect on the number of myotubes or the average number of nuclei per myotube, suggesting myogenesis was not impaired by troglitazone treatment. These results suggest that regulation of intramuscular adipogenesis differs from that of subcutaneous adipogenesis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1525-3163
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
84
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1076-82
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
A comparison of thiazolidinedione-induced adipogenesis and myogenesis in stromal-vascular cells from subcutaneous adipose tissue or semitendinosus muscle of postnatal pigs.
pubmed:affiliation
Animal Physiology Research Unit, Richard B. Russell Agricultural Research Center, USDA-ARS, Athens, GA 30605-2720, USA.
pubmed:publicationType
Journal Article, Comparative Study