Project description:This study compares the epigenetic signatures of CD34+ cells from chronic phase chronic myeloid leukemia (CML) samples and blast phase CML samples v.s. normal CD34+ cells from cord blood and adult bone marrow samples. H3K27me3 genomic loci were detected by ChIP-seq.
Project description:A novel method for detecting genome-wide ASM (allele-specific methylation) was developed by modification of the Affymetrix 250K StyI SNP arrays. Using this method, and the above mentioned samples, we consistently detected ASM in non-imprinted regions of the genome. Interestingly, ASM appears to be strongly correlated with the SNP sequences in cis. DNA from various sources (6 normal blood, 2 normal bone marrow, 2 CD34+ bone marrow, and 3 placenta samples) was genotyped and ASM was scored as an allele call conversion from 'AB' (heterozygous) to 'AA' or 'BB' (homozygous) in the StyI+HpaII genomic representation, compared to the StyI-only representation. Each sample was subjected to 5 runs of genotyping on the 250K StyI array, including 2 StyI alone, 2 StyI+HpaII and 1 StyI+MspI.
Project description:Cryopreserved normal CD34 + bone marrow cells were derived from eight healthy Caucasians (four men and four women; PromoCell GMBH; Heidelberg, Germany), and their age did not differ significantly from the AML patients analysed in the study. The submitted samples have been analyzed together with raw files derived from 50 different AML patient samples (9 patients samples in this project and 41 patient samples in project PXD014997).
Project description:CD34 positive cells of bone marrow samples from normal and MDS samples were cultured ex vivo into erythroid conditions. We used microarrays to detail the gene expression programm of erythroid cells between normal and pathological (MDS) samples
