Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2004-12-13
pubmed:abstractText
Peroxisome proliferator-activated receptor-gamma (PPAR-gamma) expression is very low in skeletal muscle cells, which is one of the most important target tissues for insulin and plays a predominant role in glucose homeostasis. It has recently been shown that muscle-specific PPAR-gamma deletion in mouse causes insulin resistance. However, it is likely that the observed effects might be due to secondary interaction in whole animal. The aim of the study was to explore the role of muscle PPAR-gamma in insulin sensitivity. We stably transfected C2C12 skeletal muscle cells with plasmids containing sense or antisense constructs of PPAR-gamma and examined the effect of modulation of PPAR-gamma expression in terms of glucose uptake. Effect was also examined in insulin-resistant C2C12 skeletal muscle cells. In transfected C2C12 cell line, the inhibition of PPAR-gamma expression (23.0 +/-0.005%) was observed to induce insulin resistance as determined by functional assessment of 2-deoxyglucose incorporation. Overexpression of PPAR-gamma (28.5 +/- 0.008%) produced an additional effect on insulin (100 nM) and Pioglitazone (50 microM), resulting in 42.7 +/- 3.5% increase in glucose uptake as against 29.2+/-2.8% in wild-type C2C12 skeletal muscle cells differentiated under normal (2% horse serum) condition. Under similar treatment, PPAR-gamma overexpressing cells resistant to insulin exhibited enhanced glucose uptake upto 60.7 +/- 4.08%, as compared to 23.8 +/- 5.1% observed in wild-type C2C12 skeletal muscle cells. These data demonstrate a direct involvement of PPAR-gamma in insulin sensitization of TZD action on skeletal muscle cells, and suggest that pharmacological overexpression of muscle PPAR-gamma gene in skeletal muscle might be a useful strategy for the treatment of insulin resistance.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-10329978, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-10415081, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-10446195, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-10549291, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-10567719, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-10622252, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-10675354, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-10768091, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-10905472, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-10953020, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-11056218, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-11147817, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-11334413, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-11477074, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-11788685, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-12086937, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-12145152, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-12237252, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-12349907, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-12409500, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-12453919, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-12663460, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-14536066, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-14614508, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-14625542, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-1532777, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-3843705, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-3883806, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-5432063, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-7768881, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-8536636, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-8922349, http://linkedlifedata.com/resource/pubmed/commentcorrection/15504754-9832442
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0007-1188
pubmed:author
pubmed:issnType
Print
pubmed:volume
143
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1006-13
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
PPAR-gamma expression modulates insulin sensitivity in C2C12 skeletal muscle cells.
pubmed:affiliation
Signal Transduction Research Laboratory, Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Punjab 160 062, India.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't