Gene Set: ROSTY_CERVICAL_CANCER_PROLIFERATION_CLUSTER

Standard name ROSTY_CERVICAL_CANCER_PROLIFERATION_CLUSTER
Systematic name M15664
Brief description The 'Cervical Cancer Proliferation Cluster' (CCPC): genes whose expression in cervical carcinoma positively correlates with that of the HPV E6 and E7 oncogenes; they are also differentially expressed according to disease outcome.
Full description or abstract Specific HPV DNA sequences are associated with more than 90% of invasive carcinomas of the uterine cervix. Viral E6 and E7 oncogenes are key mediators in cell transformation by disrupting TP53 and RB pathways. To investigate molecular mechanisms involved in the progression of invasive cervical carcinoma, we performed a gene expression study on cases selected according to viral and clinical parameters. Using Coupled Two-Way Clustering and Sorting Points Into Neighbourhoods methods, we identified a 'cervical cancer proliferation cluster' composed of 163 highly correlated transcripts. Most of these transcripts corresponded to E2F pathway genes controlling cell division or proliferation, whereas none was known as TP53 primary target. The average expression level of the genes of this cluster was higher in tumours with an early relapse than in tumours with a favourable course (P = 0.026). Moreover, we found that E6/E7 mRNA expression level was positively correlated with the expression level of the cluster genes and with viral DNA load. These findings suggest that HPV E6/E7 expression level plays a key role in the progression of invasive carcinoma of the uterine cervix via the deregulation of cellular genes controlling tumour cell proliferation. HPV expression level may thus provide a biological marker useful for prognosis assessment and specific therapy of the disease.
Collection C2: curated gene sets
      CGP: chemical and genetic perturbations
Source publication Pubmed 16007141   Authors: Rosty C,Sheffer M,Tsafrir D,Stransky N,Tsafrir I,Peter M,Crémoux de P,Rochefordière La de A,Salmon R,Dorval T,Thiery JP,Couturier J,Radvanyi F,Domany E,Sastre-Garau X
Exact source Table 3S
Related gene sets (show 49 gene sets from the same authors)
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Organism Homo sapiens
Contributed by Leona Saunders (MSigDB Team)
Source platform HG-U133A
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Compendia expression profiles Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)
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Version history 3.0: First introduced

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