{"owner": "ArrayExpress Uploader", "ownerprofile_id": "arrayexpress_sid", "species": "mouse", "factors": [{"GSE13221GSM333991": {}}, {"GSE13221GSM333992": {}}, {"GSE13221GSM333993": {}}, {"GSE13221GSM333994": {}}, {"GSE13221GSM333995": {}}, {"GSE13221GSM333996": {}}], "id": 8378, "pop_total": 0, "platform": 8, "summary_wrapped": "F1 hybrids from (AKR/J x FVB/NJ) and (DBA/2J x FVB/NJ) outcrosses display a 20-fold difference in mammary tumor metastatic capacity, due...", "geo_gse_id": "E-GEOD-13221", "owner_profile": "/profile/8773/arrayexpressuploader", "factor_count": 0, "sample_count": 6, "tags": ["basal", "mammary tumor"], "lastmodified": "Dec.12, 2014", "is_default": false, "geo_id_plat": "E-GEOD-13221_A-AFFY-36", "slug": "transcription-profiling-of-mouse-akrj-x-pymt-f1-ve", "geo_gds_id": "", "name": "Transcription profiling of mouse AKR/J x PyMT F1 versus DBA/2J x PyMT F1 tumors", "created": "Nov.24, 2014", "summary": "F1 hybrids from (AKR/J x FVB/NJ) and (DBA/2J x FVB/NJ) outcrosses display a 20-fold difference in mammary tumor metastatic capacity, due to differences in inherited polymorphisms.  Expression studies were performed to determine whether polymorphism-driven gene expression signatures predictive of outcome could be generated from mouse tumor tissues Experiment Overall Design: Mammary tumors from adult F1 animals from (AKR/J x PyMT) and (DBA/2J x PyMT) outcrosses was collected and arrayed on Affymetrics chip to identify basal differences in gene expression between the different genotypes", "source": "http://www.ebi.ac.uk/arrayexpress/experiments/E-GEOD-13221", "sample_source": "http://www.ebi.ac.uk/arrayexpress/experiments/E-GEOD-13221/samples/"}