Human Gene Set: SENGUPTA_NASOPHARYNGEAL_CARCINOMA_DN


Standard name SENGUPTA_NASOPHARYNGEAL_CARCINOMA_DN
Systematic name M12671
Brief description Genes down-regulated in nsopharyngeal carcinoma relative to the normal tissue.
Full description or abstract To identify the molecular mechanisms by which EBV-associated epithelial cancers are maintained, we measured the expression of essentially all human genes and all latent EBV genes in a collection of 31 laser-captured, microdissected nasopharyngeal carcinoma (NPC) tissue samples and 10 normal nasopharyngeal tissues. Global gene expression profiles clearly distinguished tumors from normal healthy epithelium. Expression levels of six viral genes (EBNA1, EBNA2, EBNA3A, EBNA3B, LMP1, and LMP2A) were correlated among themselves and strongly inversely correlated with the expression of a large subset of host genes. Among the human genes whose inhibition was most strongly correlated with increased EBV gene expression were multiple MHC class I HLA genes involved in regulating immune response via antigen presentation. The association between EBV gene expression and inhibition of MHC class I HLA expression implies that antigen display is either directly inhibited by EBV, facilitating immune evasion by tumor cells, and/or that tumor cells with inhibited presentation are selected for their ability to sustain higher levels of EBV to take maximum advantage of EBV oncogene-mediated tumor-promoting actions. Our data clearly reflect such tumor promotion, showing that deregulation of key proteins involved in apoptosis (BCL2-related protein A1 and Fas apoptotic inhibitory molecule), cell cycle checkpoints (AKIP, SCYL1, and NIN), and metastasis (matrix metalloproteinase 1) is closely correlated with the levels of EBV gene expression in NPC.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 16912175   Authors: Sengupta S,den Boon JA,Chen IH,Newton MA,Dahl DB,Chen M,Cheng YJ,Westra WH,Chen CJ,Hildesheim A,Sugden B,Ahlquist P
Exact source Table 3S: downregulated in tumors
Related gene sets (show 4 additional gene sets from the source publication)

(show 24 gene sets from any of these authors)
External links
Filtered by similarity ?
Source species Homo sapiens
Contributed by Leona Saunders (MSigDB Team)
Source platform or
identifier namespace		 AFFY_HG_U133
Dataset references (show 1 datasets)
Download gene set format: grp | gmt | xml | json | TSV metadata
Compute overlaps ? (show collections to investigate for overlap with this gene set)
Compendia expression profiles ? NG-CHM interactive heatmaps
(Please note that clustering takes a few seconds)
GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)

Legacy heatmaps (PNG)
GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)
Advanced query Further investigate these 362 genes
Gene families ? Categorize these 362 genes by gene family
Show members (show 429 source identifiers mapped to 362 genes)
Version history 3.0: First introduced

See MSigDB license terms here. Please note that certain gene sets have special access terms.