Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Transcription profiling of human adult male germ cell tumours

ABSTRACT: Expression profiling of a panel of 101 adult male germ cell tumors and 5 normal testis specimens was performed on Affymetrix U133A and U133B microarrays. This data has been used to:; 1) generate a gene classifier that predicts histology (see PMID 15870693). 2) identify candidate target genes on 12p, a region that is gained in almost 100% of germ cell tumors (see PMID 16424014); 3) identify pluripotency associated genes through comparison of pluripotent embryonal carcinoma vs. undifferentiated seminoma. ONGOING:; 4) Identification of genes associated with patient outcome and cisplatin resistance. Experiment Overall Design: Tumor tissues were collected under IRB-approved protocols at the Memorial Sloan-Kettering Cancer Center, New York, between 1987 and 1999. The tumor samples consist of 17 seminomas, 15 pure EC, 15 pure T, 10 pure YS, 2 pure CC, and 42 NSGCT with mixed histologies. There were six patients who had each had two tumors per patient that were included in this study (designated with the same number but different letter- e.g. 155A and 155C are from same patient but represent two different tumors, one being the primary testicular lesion, the other being a liver metastasis). Five normal testis specimens (and one pooled sample consisting of equal amounts of the 5 normal testis specimens) from individual of similar ages were used as controls.

ORGANISM(S): Homo sapiens

SUBMITTER: James Korkola

PROVIDER: E-GEOD-3218 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Down-regulation of stem cell genes, including those in a 200-kb gene cluster at 12p13.31, is associated with in vivo differentiation of human male germ cell tumors.

Korkola James E JE Houldsworth Jane J Chadalavada Rajendrakumar S V RS Olshen Adam B AB Dobrzynski Debbie D Reuter Victor E VE Bosl George J GJ Chaganti R S K RS

Cancer research 20060101 2

Adult male germ cell tumors (GCTs) comprise distinct groups: seminomas and nonseminomas, which include pluripotent embryonal carcinomas as well as other histologic subtypes exhibiting various stages of differentiation. Almost all GCTs show 12p gain, but the target genes have not been clearly defined. To identify 12p target genes, we examined Affymetrix (Santa Clara, CA) U133A+B microarray ( approximately 83% coverage of 12p genes) expression profiles of 17 seminomas, 84 nonseminoma GCTs, and 5 n ...[more]

PMID: 16424014

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Dataset Information

Transcription profiling of human adult male germ cell tumours

Publications

Down-regulation of stem cell genes, including those in a 200-kb gene cluster at 12p13.31, is associated with in vivo differentiation of human male germ cell tumors.

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