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Histone deacetylase 7 role in B cell acute lymphoblastic leukemia and B cell lymphoma

ABSTRACT: The generation of B cells is a complex process requiring several cellular transitions, including cell commitment and differentiation, that are tightly controlled by the action of linage-specific transcription factors. Proper transcriptional control to establish the genetic programs characteristic of each cellular stage is essential for the correct development of B lymphocytes. In fact, deregulation of these particular transcriptional programs may result in a block in B cell maturation, contributing to the development of hematological malignancies such as leukemia and lymphoma. In this experiments, We study the HDAC7 expression levels in pro-B-ALL and Burkitt lymphoma. SD-1 Tet-On-Tight-HDAC7 or SD-1 cells were treated or not for 24 hours with doxycycline. We compare the effects in gene expression between the different situations (in presence or in absence of doxycycline)

ORGANISM(S): Homo sapiens

SUBMITTER: Antonio Gómez

PROVIDER: E-GEOD-51895 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Histone deacetylase 7 role in B cell acute lymphoblastic leukemia and B cell lymphoma

Project description:The generation of B cells is a complex process requiring several cellular transitions, including cell commitment and differentiation, that are tightly controlled by the action of linage-specific transcription factors. Proper transcriptional control to establish the genetic programs characteristic of each cellular stage is essential for the correct development of B lymphocytes. In fact, deregulation of these particular transcriptional programs may result in a block in B cell maturation, contributing to the development of hematological malignancies such as leukemia and lymphoma. In this experiments, We study the HDAC7 expression levels in pro-B-ALL and Burkitt lymphoma.

2014-12-18 | GSE51895 | GEO

Expression data from Burkitt lymphoma cases

Project description:Burkitt lymphoma is the commonest cancer in children in Africa. We compared the gene expression profiles of African Burkitt lymphoma patients with those of cases presented in Western countries in both immunocompetent (sporadic Burkitt lymphoma) and HIV-infected patients (immunodeficiency associated Burkitt lymphoma). We used microarrays to detail the global programme of gene expression in different subtypes of Burkitt lymphoma.

2011-01-20 | GSE26673 | GEO

A Biologic Definition of Burkitt's Lymphoma from Transcriptional and Genomic Profiling

Project description:The distinction between the Burkitt lymphoma and diffuse large B-cell lymphoma is imprecise using current diagnostic criteria. We applied transcriptional and genomic profiling to molecularly define Burkitt lymphoma. Gene expression profiling employing Affymetrix GeneChips (U133A) was performed in 220 mature aggressive B-cell lymphomas, including a core group of eight Burkitt lymphomas, which fulfilled all diagnostic criteria of the WHO classification. A molecular signature of Burkitt lymphoma was generated. Chromosomal abnormalities were detected by interphase fluorescence in-situ hybridization and array comparative genomic hybridization. The molecular Burkitt lymphoma signature identified 44 cases. Fifteen of these cases lacked a morphology typical for Burkitt/Burkitt-like lymphoma. The vast majority (88%) of the 176 lymphomas without the molecular Burkitt lymphoma signature represented diffuse large B-cell lymphomas. In 20% of these cases a MYC break was detectable which was associated with complex chromosomal changes. Our molecular definition of Burkitt lymphoma sharpens and extends the spectrum of Burkitt lymphoma. In mature aggressive B-cell lymphomas without a Burkitt lymphoma signature, a chromosomal break in the MYC locus proved to be associated with adverse clinical outcome. Keywords: Gene expression

2006-06-07 | GSE4475 | GEO

Transcription profiling of human Burkitts lymphomas

2008-06-13 | E-GEOD-4475 | biostudies-arrayexpress

miR-28 expression in the Burkitt lymphoma cell line P3HR1

Project description:Burkitt lymphoma (BL) is a highly aggressive B cell non-Hodgkin lymphoma (B-NHL), which originates from germinal center (GC) B cells and harbors translocations deregulating the MYC oncogene. A comparative analysis of microRNAs (miRNAs) expressed in normal and malignant GC B cells identified miR-28 as significantly down-regulated in BL, as well as in other GC-derived B-NHL. We show that re-expression of miR-28 impairs cell growth and clonogenic properties of BL cells by modulating several targets including MAD2L1, a component of the spindle checkpoint whose down-regulation is essential in mediating miR-28-induced growth-arrest, and BAG1, an activator of the ERK pathway. P3HR1 Burkitt lymphoma cell line was engineered to display inducible expression of GFP alone or GFP in combination with the miR-28 precursor from the pRTS1 vector upon doxycycline treatment. Two bulk populations (A and B) were established for both the control (GFP alone) and the miR28-expressing (GFP and miR-28 precursor) cells. Cells were induced with 0.1ug/ml doxycycline for 12h or 24h. Induction was performed on each bulk population in triplicates.

2014-06-01 | E-GEOD-56268 | biostudies-arrayexpress

Transcriptomic analysis of EBV-negative Akata Burkitt Lymphoma Cell target genes upon CRISPR knockout of the individual NF-κB transcription factor as well as induction of wildtype LMP1 expression

Project description:RNA-seq was used to characterize the NF-κB transcription factor -mediated regulation of B-cell genome wide target genes upon inducible LMP1 expression . We created an inducible stable EBV-negative Akata Burkitt Lymphoma cell line expressing LMP1 wildtype followed by stable CRISPR knockout of the individual NF-κB transciption factors (p52, RelB, p50, cRel or RelA) and 24 hours 250ng/ml doxycycline-induced LMP1 expression.

2024-01-30 | GSE247495 | GEO

Transcription profiling of Burkitt lymphoma cases

2011-01-20 | E-GEOD-26673 | biostudies-arrayexpress

Project description:Chidhood Burkitt Lymphoma

| PRJNA622666 | ENA

Project description:Chidhood Burkitt Lymphoma

| PRJNA615971 | ENA

The genetic landscape of mutations in Burkitt lymphoma

Project description:Burkitt lymphoma is characterized by deregulation of MYC, but the contribution of other genetic mutations to the disease is largely unknown. Here, we describe the first completely sequenced genome from a Burkitt lymphoma tumor and germline DNA from the same affected individual. We further sequenced the exomes of 59 Burkitt lymphoma tumors and compared them to sequenced exomes from 94 diffuse large B-cell lymphoma (DLBCL) tumors. We identified 70 genes that were recurrently mutated in Burkitt lymphomas, including ID3, GNA13, RET, PIK3R1 and the SWI/SNF genes ARID1A and SMARCA4. Our data implicate a number of genes in cancer for the first time, including CCT6B, SALL3, FTCD and PC. ID3 mutations occurred in 34% of Burkitt lymphomas and not in DLBCLs. We show experimentally that ID3 mutations promote cell cycle progression and proliferation. Our work thus elucidates commonly occurring gene-coding mutations in Burkitt lymphoma and implicates ID3 as a new tumor suppressor gene.

2013-07-01 | GSE48435 | GEO

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