Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2003-2-20
pubmed:abstractText
Recent studies have demonstrated that peroxisome proliferator activator-receptors(PPAR)-gamma is expressed in various cancer tissues and its ligand induces growth arrest of these cancer cells through apoptosis. In our study, we investigated the expression of PPAR-alpha, beta and gamma in human bladder tumor (BT) and normal bladder (NB) tissues as well as the effects of PPAR-gamma ligands. Specimens were obtained from 170 patients with BT and 20 with NB. The expressions were investigated using RT-PCR and immunohistochemical methods. We also investigated the inhibitory effect of PPAR-gamma ligands on BT-derived cell line. Immunoreactive PPAR-alpha and -beta were significantly apparent in both BT and NB tissues. Although no marked expression of PPAR-gamma was observed in NB tissue, significant expression was found in BT tissue. The extent and intensity of immunoreactive PPAR-gamma polypeptides in BT cells were statistically much greater than those of NB cells. Correlation between PPAR-gamma expression and tissue type or progression of bladder cancer was observed; PPAR-gamma expression was higher in G3 of bladder cancer than in G1 and was higher in advanced than in early cancer. PPAR-gamma agonists, troglitazone and 15-deoxy-Delta(12, 14)-prostaglandin J(2) inhibited the growth of the BT cells. PPAR-gamma is expressed in bladder tumor, and results suggest that PPAR-gamma ligands may mediate potent antiproliferative effects against BT cells. Thus, PPAR-gamma has the ability to become a new target in treatment of bladder tumor.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0020-7136
pubmed:author
pubmed:copyrightInfo
Copyright 2003 Wiley-Liss, Inc.
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
104
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
597-602
pubmed:dateRevised
2007-7-24
pubmed:meshHeading
pubmed-meshheading:12594814-Aged, pubmed-meshheading:12594814-Cell Division, pubmed-meshheading:12594814-Chromans, pubmed-meshheading:12594814-Female, pubmed-meshheading:12594814-Gene Expression Regulation, Neoplastic, pubmed-meshheading:12594814-Humans, pubmed-meshheading:12594814-Immunohistochemistry, pubmed-meshheading:12594814-Ligands, pubmed-meshheading:12594814-Male, pubmed-meshheading:12594814-Middle Aged, pubmed-meshheading:12594814-Neoplasm Staging, pubmed-meshheading:12594814-Receptors, Cytoplasmic and Nuclear, pubmed-meshheading:12594814-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:12594814-Thiazoles, pubmed-meshheading:12594814-Thiazolidinediones, pubmed-meshheading:12594814-Transcription Factors, pubmed-meshheading:12594814-Urinary Bladder, pubmed-meshheading:12594814-Urinary Bladder Neoplasms
pubmed:year
2003
pubmed:articleTitle
Expression of peroxisome proliferator-activated receptors (PPARs) in human urinary bladder carcinoma and growth inhibition by its agonists.
pubmed:affiliation
Department of Urology, Osaka City University Medical School, Osaka, Japan. jasmin@med.osaka-cu.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't