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Status |
Public on Oct 13, 2011 |
Title |
MLL-rearranged infant ALL in vitro resistant to prednisolone 4 |
Sample type |
RNA |
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Source name |
Primary infant ALL cells at diagnosis (untreated) (>90% blasts)
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Organism |
Homo sapiens |
Characteristics |
disease state: Precursor B-cell acute lymphoblastic leukemia (ALL) cell type: Primary infant ALL cells at diagnosis (untreated) (>90% blasts) genotype: MLL-rearranged age: < 1 year of age prednisolone sensitivity: resistant
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Treatment protocol |
Primary ALL samples were obtained at diagnosis (before treatment) and processed within 24 hours after sampling. All samples contained >90% leukemic blasts.
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Extracted molecule |
total RNA |
Extraction protocol |
Total RNA was extracted form leukemic cells using TRIzol reagent (Invitrogen) according to the manufacturer's protocol
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Label |
biotin
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Label protocol |
Biotinylated cRNA were prepared according to the standard Affymetrix protocol from 6 ug total RNA (Expression Analysis Technical Manual, 2001, Affymetrix).
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Hybridization protocol |
Fragmented cRNA was hybridized to Affymetrix HU133plus 2.0 microarrays. GeneChips were washed and stained in the Affymetrix Fluidics Station 400.
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Scan protocol |
GeneChips were scanned using the Hewlett-Packard GeneArray Scanner G2500A.
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Description |
res_4 Gene expression profiling data (HU133plus2.0) MLL-rearranged infant ALL cels
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Data processing |
The CEL files represent the raw (unscaled; scaling factor = 1) gene expression data. Raw (unscaled) array data was collectively normalized using variance-stabilizing normalization (VSN), performed in the statistical environment R (version 2.10.1) using Bioconductor packages.
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Submission date |
Oct 13, 2011 |
Last update date |
Oct 13, 2011 |
Contact name |
Jill Spijkers-Hagelstein |
E-mail(s) |
[email protected]
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Phone |
+31107043951
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Organization name |
ErasmusMC - Sophia's Childrens Hospital
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Department |
Pediatric Oncology
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Street address |
Dr Molewaterplein 50
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City |
Rotterdam |
ZIP/Postal code |
3015 GE |
Country |
Netherlands |
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Platform ID |
GPL570 |
Series (1) |
GSE32962 |
In vitro prednisolone resistance signature in MLL-rearranged infant ALL |
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