{"owner": "ArrayExpress Uploader", "pop_total": 0, "species": "human", "factors": [{"GSE16155GSM404936": {}}, {"GSE16155GSM404937": {}}, {"GSE16155GSM404938": {}}, {"GSE16155GSM404939": {}}, {"GSE16155GSM404940": {}}, {"GSE16155GSM404941": {}}, {"GSE16155GSM404942": {}}, {"GSE16155GSM404943": {}}, {"GSE16155GSM404944": {}}, {"GSE16155GSM404945": {}}, {"GSE16155GSM404946": {}}, {"GSE16155GSM404947": {}}, {"GSE16155GSM404948": {}}, {"GSE16155GSM404949": {}}, {"GSE16155GSM404950": {}}, {"GSE16155GSM404951": {}}, {"GSE16155GSM404952": {}}, {"GSE16155GSM404953": {}}, {"GSE16155GSM404954": {}}], "id": 3283, "ownerprofile_id": "arrayexpress_sid", "platform": 4, "summary_wrapped": "Ependymoma, the 3rd most common brain tumor in children, recurs in approximately 50% of patients. There is currently no robust marker...", "geo_gse_id": "E-GEOD-16155", "owner_profile": "/profile/8773/arrayexpressuploader", "factor_count": 0, "sample_count": 19, "tags": ["brain"], "lastmodified": "Dec.12, 2014", "is_default": false, "geo_gds_id": "", "slug": "transcription-profiling-of-human-ependymoma-tumors", "geo_id_plat": "E-GEOD-16155_A-AFFY-44", "name": "Transcription profiling of human ependymoma tumors with known clinical outcomes", "created": "Sep.12, 2014", "summary": "Ependymoma, the 3rd most common brain tumor in children, recurs in approximately 50% of patients. There is currently no robust marker that predicts for recurrence, which is a significant clinical problem; We used global gene expression profiling of 19 patient surgical samples obtained at initial diagnosis and with known clinical outcomes to discover novel prognostic markers. Experiment Overall Design: Gene expression profiles were generated from surgical tumor samples using Affymetrix HG-U133plus2 chips. Profiles were divided into recurrent and non-recurrent groups in order to identify differentially expressed genes that were associated with risk of recurrence. In addition, time to progression was correlated with gene expression as a continuous variable in the recurrent group.", "source": "http://www.ebi.ac.uk/arrayexpress/experiments/E-GEOD-16155", "sample_source": "http://www.ebi.ac.uk/arrayexpress/experiments/E-GEOD-16155/samples/"}