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2016 ; 17
(8
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Gene Set-Based Integrative Analysis Revealing Two Distinct Functional Regulation
Patterns in Four Common Subtypes of Epithelial Ovarian Cancer
#MMPMID27527159
Chang CM
; Chuang CM
; Wang ML
; Yang YP
; Chuang JH
; Yang MJ
; Yen MS
; Chiou SH
; Chang CC
Int J Mol Sci
2016[Aug]; 17
(8
): ä PMID27527159
show ga
Clear cell (CCC), endometrioid (EC), mucinous (MC) and high-grade serous
carcinoma (SC) are the four most common subtypes of epithelial ovarian carcinoma
(EOC). The widely accepted dualistic model of ovarian carcinogenesis divided EOCs
into type I and II categories based on the molecular features. However, this
hypothesis has not been experimentally demonstrated. We carried out a gene
set-based analysis by integrating the microarray gene expression profiles
downloaded from the publicly available databases. These quantified biological
functions of EOCs were defined by 1454 Gene Ontology (GO) term and 674 Reactome
pathway gene sets. The pathogenesis of the four EOC subtypes was investigated by
hierarchical clustering and exploratory factor analysis. The patterns of
functional regulation among the four subtypes containing 1316 cases could be
accurately classified by machine learning. The results revealed that the ERBB and
PI3K-related pathways played important roles in the carcinogenesis of CCC, EC and
MC; while deregulation of cell cycle was more predominant in SC. The study
revealed that two different functional regulation patterns exist among the four
EOC subtypes, which were compatible with the type I and II classifications
proposed by the dualistic model of ovarian carcinogenesis.
|*Gene Expression Regulation, Neoplastic
[MESH]
|*Genes, Neoplasm
[MESH]
|Carcinoma, Ovarian Epithelial
[MESH]
|Databases, Genetic
[MESH]
|Down-Regulation/genetics
[MESH]
|Factor Analysis, Statistical
[MESH]
|Female
[MESH]
|Gene Ontology
[MESH]
|Gene Regulatory Networks
[MESH]
|Humans
[MESH]
|Machine Learning
[MESH]
|Neoplasms, Glandular and Epithelial/*classification/*genetics
[MESH]