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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2011-1-26
pubmed:abstractText
Runt-related transcription factor 3 (RUNX3) is a transcription factor of the transforming growth factor (TGF)-? superfamily and acts as a tumor suppressor gene, which is silenced by hypermethylation of the promoter region in various cancers. In this study, we examined the expression and methylation status of RUNX3 in the salivary gland cancers pleomorphic adenoma (PA), adenoid cystic carcinoma (ACC) and mucoepidermoid carcinoma (MEC). The cytoplasmic expression rates of RUNX3 in PA, ACC and MEC were 65% (13/20), 22.2% (8/36) and 20.6% (7/34), respectively. Low expression or deletion of RUNX3 in ACC and MEC was significantly associated with tumor progression and poor prognosis. Using microdissected cDNA, we found that RUNX3 mRNA expression was lower in ACC and MEC than in PA and noncancerous salivary glands; furthermore, hypermethylation of RUNX3 was detected more frequently in PA (2/8, 25%), ACC (6/8, 75%) and MEC (7/8, 87.5%) than in noncancerous salivary glands (0/8, 0%). Our results suggest that low expression or deletion of RUNX3 in salivary gland tumors might play a pivotal role in tumorigenesis and tumor progression and poor prognosis in the case of salivary gland ACC and MEC. Recovery of the tumor suppressive function of RUNX3 might inhibit tumorigenesis and cancer progression in the human salivary gland.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1349-7006
pubmed:author
pubmed:copyrightInfo
© 2010 Japanese Cancer Association.
pubmed:issnType
Electronic
pubmed:volume
102
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
492-7
pubmed:meshHeading
pubmed-meshheading:21105967-Adenoma, Pleomorphic, pubmed-meshheading:21105967-Carcinoma, Adenoid Cystic, pubmed-meshheading:21105967-Carcinoma, Mucoepidermoid, pubmed-meshheading:21105967-Core Binding Factor Alpha 3 Subunit, pubmed-meshheading:21105967-DNA Methylation, pubmed-meshheading:21105967-Down-Regulation, pubmed-meshheading:21105967-Gene Expression Profiling, pubmed-meshheading:21105967-Humans, pubmed-meshheading:21105967-Immunohistochemistry, pubmed-meshheading:21105967-Kaplan-Meier Estimate, pubmed-meshheading:21105967-Lasers, pubmed-meshheading:21105967-Microdissection, pubmed-meshheading:21105967-Neoplasm Staging, pubmed-meshheading:21105967-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:21105967-Salivary Gland Neoplasms, pubmed-meshheading:21105967-Tumor Markers, Biological
pubmed:year
2011
pubmed:articleTitle
Downregulation of runt-related transcription factor 3 associated with poor prognosis of adenoid cystic and mucoepidermoid carcinomas of the salivary gland.
pubmed:affiliation
Department of Molecular Pathology, Nara Medical University, Kashihara, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't