Renal cell carcinoma (RCC) exhibits some unusual features and genes commonly mutated in cancer are rarely mutated in clear-cell RCC (ccRCC), the most common type. The most prevalent genetic alteration in ccRCC is the inactivation of the tumor suppressor gene VHL. Using whole-genome and exome sequencing we discovered BAP1 as a novel tumor suppressor in ccRCC that shows little overlap with mutations in PBRM1, another recent tumor suppressor. Whereas VHL was mutated in 81% of the patients (142/176), PBRM1 was lost in 58% and BAP1 in 15% of the patients analyzed. All these tumor suppressor genes are located in chromosome 3p, which is partially or completely lost in most ccRCC patients. However, BAP1 but not PBRM1 loss was associated with higher Fuhrman grade and, therefore, poorer outcome. Xenograft tumors (tumorgrafts) implanted orthotopically in mice exhibited similar gene expression profiling to corresponding primary tumors. Gene expression profiling of tumors and tumorgrafts displayed different signatures for BAP1- and PBRM1-deficient samples. Thus, after inactivation of VHL, the acquisition of a mutation in BAP1 or PBRM1 defines a different program that might alter the fate of the patient. Our results establish the foundation for an integrated pathological and molecular genetic classification of about 70% of ccRCC patients, paving the way for subtype-specific treatments exploiting genetic vulnerabilities.
BAP1 loss defines a new class of renal cell carcinoma.
Sex, Age, Specimen part, Disease, Disease stage, Subject
View SamplesWe sought to identify genes and gene signatures which correlate with progression by sampling human melanomas from nevi, primary, and metastatic tumors. The large number of samples also permits analysis within groups.
Integrative genome comparison of primary and metastatic melanomas.
Sex, Specimen part, Disease, Race, Subject
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Integrated genomic analysis of colorectal cancer progression reveals activation of EGFR through demethylation of the EREG promoter.
Sex, Age, Specimen part
View SamplesColorectal cancer (CRC) tumorigenesis proceedes through well defined clinical stages assoicated with charateristic mutations. To get a better understanding of CRC progression at the transcriptional level, we performed transcriptome profiling on samples from normal colonic tissues, pre-malignant adenomas, carcinomas and metatases.
Integrated genomic analysis of colorectal cancer progression reveals activation of EGFR through demethylation of the EREG promoter.
Sex, Specimen part
View SamplesLung cancer is still the leading cause of cancer-related deaths in the US and worldwide. Understanding the global molecular profiles or transcriptome of lung cancers would strengthen our understanding of the biology of this malignancy.
ETS2 mediated tumor suppressive function and MET oncogene inhibition in human non-small cell lung cancer.
Specimen part
View SamplesETS2 is a canonical transcriptional factor and member of the ETS family of genes. ETS2 binds to consensus ERE binding sites in a broad spectrum of genes thus affecting many intracellular molecular functions. However, the role of ETS2 in the biology and pathogenesis of lung cancers is still not known.
ETS2 mediated tumor suppressive function and MET oncogene inhibition in human non-small cell lung cancer.
Cell line, Treatment
View SamplesPrevious work has shown that lung tumors and normal-appearing adjacent lung tissues share specific abnormalities that may be highly pertinent to the pathogenesis of lung cancer. However, the global and molecular adjacent airway field cancerization in non-small cell lung cancer (NSCLC) has not been characterized before.
Transcriptomic architecture of the adjacent airway field cancerization in non-small cell lung cancer.
Specimen part
View SamplesGenome-wide association studies (GWAS) have been pivotal to increasing our understanding of intestinal disease. However, the mode by which genetic variation results in phenotypic change remains largely unknown, with many associated polymorphisms likely to modulate gene expression. Analyses of expression quantitative trait loci (eQTL) to date indicate that as many as 50% of these are tissue specific. Here we report a comprehensive eQTL scan of intestinal tissue.
Expression quantitative trait loci analysis identifies associations between genotype and gene expression in human intestine.
Sex, Disease
View SamplesThe involvement of skeletal muscle in the process of palatal development in mammals is an example of Waddingtonian epigenetics. Our earlier study showed that the cleft palate develops in the complete absence of skeletal musculature during embryonic development in mice. This contrasts with previous beliefs that tongue obstruction prevents the elevation and fusion of the palatal shelves. We argue that the complete absence of mechanical stimuli from the adjacent muscle, i.e., the lack of both static and dynamic loading, results in disordered palatogenesis. We further suggest that proper fusion of the palatal shelves depends not only on mechanical but also on paracrine contributions from the muscle. The muscle's paracrine role in the process of palatal fusion is achieved through its being a source of certain secreted and/or circulatory proteins.
Role of skeletal muscle in palate development.
Specimen part
View SamplesGene expression alterations in response to cigarette smoke have been characterized in normal-appearing bronchial epithelium of healthy smokers and it has been suggested that adjacent histologically normal tissue display tumor-associated molecular abnormalities.
Characterizing the molecular spatial and temporal field of injury in early-stage smoker non-small cell lung cancer patients after definitive surgery by expression profiling.
Specimen part, Subject, Time
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