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450k Analysis of 24 HNSCC cell lines

ABSTRACT: The methylation analysis of HPV+ HNSCC cell lines and HPV- HNSCC cell lines as well as clones from an infected HPV- cell line by Infinium HumanMethylation450 BeadChip

ORGANISM(S): Homo sapiens

PROVIDER: GSE38270 | GEO | 2012/11/30

SECONDARY ACCESSION(S): PRJNA167713

REPOSITORIES: GEO

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450k Analysis of 24 HNSCC cell lines

Project description:The methylation analysis of HPV+ HNSCC cell lines and HPV- HNSCC cell lines as well as clones from an infected HPV- cell line by Infinium HumanMethylation450 BeadChip Analysis of 24 450k methylation profiles, comprising 3 HPV+ HNSCC cell lines and 3 HPV- HNSCC cell lines (in duplicate each) and 12 infected HPV- HNSCC cell line clones

2012-11-30 | E-GEOD-38270 | biostudies-arrayexpress

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Epigenome analysis in HPV(-) and HPV(+) squamous cell carcinoma cell lines

Project description:Human papillomavirus (HPV)-associated head and neck cancers (HNSCCs) have a distinct risk profile and appreciate a prognostic advantage compared to HPV-negative HNSCC. Promoter hypermethylation has been widely recognized as an important mechanism in the progression of HNSCC, but the extent to which this mechanism is consistent between HPV(+) and HPV(-) tumors is unknown. To assess the genome-wide methylation changes in HPV(+) and HPV(-) tumors, we analyzed DNA methylation and expression patterns in two HPV(+) and two HPV(-) cell lines. HPV(+) tumors have overall higher DNA methylation in genic and LINE1 regions than HPV(-) tumors, and polycomb repressive complex 2 (PRC2) targets tend to be much more highly methylated in HPV(+) cells. Bisulphite-converted DNA from 4 squamous cell carcinoma (SCC) cell lines were hybridized to the Illumina Infinium 27k Human Methylation Beadchip.

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