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Affymetrix SNP6.0 array data for EBF1-PDGFRB rearranged acute lymphoblastic leukemia

ABSTRACT: The EBF1-PDGFRB gene fusion accounts for <1% B-cell precursor acute lymphoblastic leukaemia and occurs within the Philadelphia-like ALL subtype. We performed Affymetrix SNP 6.0 array was undertaken patients who tested positive for EBF1-PDGFRB rearrangement by FISH and/or RT-PCR.

ORGANISM(S): Homo sapiens

PROVIDER: GSE77557 | GEO | 2016/04/05

SECONDARY ACCESSION(S): PRJNA310784

REPOSITORIES: GEO

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Affymetrix SNP6.0 array data for EBF1-PDGFRB rearranged acute lymphoblastic leukemia

Project description:The EBF1-PDGFRB gene fusion accounts for <1% B-cell precursor acute lymphoblastic leukaemia and occurs within the Philadelphia-like ALL subtype. We performed Affymetrix SNP 6.0 array was undertaken patients who tested positive for EBF1-PDGFRB rearrangement by FISH and/or RT-PCR. We performed Affymetrix SNP 6.0 array on genomic DNA extracted from bone marrow samples taken at diagnosis in 9 patients, at relapse in one patient and at remission in one patient.

2016-04-05 | E-GEOD-77557 | biostudies-arrayexpress

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A comprehensive Proteomic Investigation of Ebf1 Heterozygosity in pro-B lymphocytes utilizing Data Independent Acquisition

Project description:Early B cell factor 1 (EBF1) is one of the key transcription factors required for orchestrating B-cell lineage development. Although studies have shown that Ebf1 haploinsufficiency is involved in the development of leukemia, no study has been conducted that characterizes the global effect of Ebf1 heterozygosity on the proteome of pro-B lymphocytes. Here, we employ both DIA (Data Independent Acquisition) and shotgun DDA (Data Dependent Acquisition) workflows for profiling proteins that are differently expressed between Ebf1+/+ and Ebf1+/- cells. Both DDA and DIA were able to reveal the downregulation of the EBF1 transcription factor in Ebf1+/- pro-B lymphocytes. Further examination of differentially expressed proteins by DIA revealed that, similar to EBF1, the expression of other B-cell lineage regulators, such as TCF3 and Pax5, is also down-regulated in Ebf1 heterozygous cells. Functional DIA analysis of differentially expressed proteins showed that EBF1 heterozygosity resulted in the deregulation of at least 8 transcription factors involved in lymphopoiesis, and to the deregulation of key proteins playing crucial roles in survival, development and differentiation of pro-B lymphocytes.

2017-12-20 | PXD008396 | Pride

PdgfrB signaling alters the beige adipogenic niche

Project description:Ageing beige adipose progenitor cells overexpress platelet derived growth factor receptor beta (PdgfrB) to prevent beige adipogenesis. Genetically deleting PdgfrB in restores beige adipocyte generation whereas activating PdgfrB in juvenile mice blocks beige fat formation.

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Gene expression profile of EBF1-wt & EBF1-H240A

Project description:To study the function of EBF1-H240 residue, a gain-of function microarray analysis was performed by transducing Empty, Ebf1-wt and Ebf1-H240A expressing vectors into Ebf1-/- progenitor cells.

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Ebf1 ChIP

Project description:Ebf1 is a key determinant of B-lymphocyte specification. In order to identify unknown transcriptional targets, endogenous Ebf1 was isolated by chromatin-IP from primary pro-B cells and the copurified DNA was hybridized to promoter tiling arrays. Ebf1 was ChIPed using a polyclonal antibody directed against an N-terminal peptide from primary pro-B cells grown in the presence of Il7. The resulting DNA was analyzed by tiling array hybridization.

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Transcription factor Ebf1 regulates differentiation stage-specific signaling, proliferative expansion and survival of B cells [EBF1]

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Project description:To study the function of EBF1-H240 residue, genome-wide EBF1 ChIP was performed in A-MuLV transformed pro-B (Ebf1fl/fl;RERTCre) cells transduced with Ebf1wt and Ebf1H240A expressing vectors.

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