Affymetrix SNP array data for a pediatric acute lymphoblastic leukemia samples
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE122859 | GEO | 2019/11/23
REPOSITORIES: GEO
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Project description:Affymetrix SNP array data for a pediatric acute lymphoblastic leukemia samples
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Project description:CHOPS syndrome is caused by germline gain-of-function mutations of AFF4. Cornelia de Lange syndrome is caused by germline mutations of cohesin loading factors or cohesin complex genes such as NIPBL, SMC1A, SMC3 and HDAC8. There are many overlapping clinical features exist between CHOPS syndrome and Cornelia de Lange syndrome. To identified commonly dysregulated genes in CHOPS syndrome and Cornelia de Lange syndrome, we perfomred side-by-side transcriptome comparison between CHOPS syndrome and Cornelia de Lange syndrome. In this transcriptome analysis, patient derived skin fibroblasts from two CHOPS syndrome probands, two Cornelia de Lange syndrome probands, and four age-gender-ethnicity matched healthy control subjects were used.The samples used for Human Gene 2.0 arrays are two CHOPs syndrome samples (CDL160 and CDL444), two Cornelia de Lange syndrome samples (CdL006: 7 year-old Caucasian female NIPBL 742_743delCT ;L248TfsX6 and CdL015: 10 year-old Caucasian male NIPBL 2969delG;G990DfsX2), and four age gender matched control samples (GM01652, GM01864, GM02036 and GM03348).
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Project description:Childhood T-cell malignancies include T-cell acute lymphoblastic leukemia (T-ALL) and T-cell lymphoblastic lymphoma (T-LBL). T-ALL and T-LBL share common morphologic and immunophenotypic features and are treated with similar therapeutic approaches. Nonetheless, they show distinct clinical presentations suggesting that they may represent two different biological entities. In order to investigate the common and unique genetic aberrations of T-LBL and T-ALL, copy number alteration (CNA) analysis was performed on a subset of the samples analyzed by GEP Affymetrix SNP arrays were performed according to the manufacturer's directions on DNA extracted from diagnostic bone marrow aspirates or tumor tissue samples. Copy number analysis of Affymetrix 100K SNP arrays was performed for 9 T-ALL and 9 T-LBL pediatric samples. The samples from leukemia/lymphoma remission were used as references for copy number inference.
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