Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Global mouse gene expression data from Idh2R140Q/NHD13 DN1/DN2 T-ALL, SCL/LMO1 non-DN1/DN2 T-ALL, and Wild Type samples assessed by oligonucleotide microarrays

ABSTRACT: Global mouse gene expression data from Idh2R140Q/NHD13 DN1/DN2 T-ALL, SCL/LMO1 non-DN1/DN2 T-ALL, and Wild Type samples assessed by oligonucleotide microarrays

PROVIDER: PRJNA750401 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Similar Datasets

Global mouse gene expression data from Idh2R140Q/NHD13 DN1/DN2 T-ALL, SCL/LMO1 non-DN1/DN2 T-ALL, and Wild Type samples assessed by oligonucleotide microarrays

Project description:Mutations in the isocitrate dehydrogenase 1 (IDH1) and IDH2 genes are frequently observed in a wide variety of hematologic malignancies, including myeloid and T-cell leukemias. In this study, we generated Idh2R140Q transgenic mice to examine the role of the Idh2R140Q mutation in leukemia. No leukemia developed in Idh2R140Q transgenic mice, suggesting a need for additional genetic events for leukemia development. Since myeloid cells from NUP98-HOXD13 fusion (NHD13) transgenic mice frequently acquire somatic Idh mutations when they transform to AML, we generated Idh2R140Q/NHD13 double transgenic mice. Idh2R140Q/NHD13 transgenic mice developed an immature T cell leukemia with an immunophenotype similar to double-negative 1 (DN1) or DN2 thymocytes. Idh2R140Q/NHD13 leukemic cells were enriched for an early thymic precursor transcriptional signature, and the gene expression profile for Idh2R140Q/NHD13 DN1/DN2 T-ALL closely matched that of human early/immature T cell precursor (EITP) ALL. Moreover, recurrent mutations found in EITP ALL patients, including KRAS, PTPN11, JAK3, SH2B3, and EZH2 were also found in Idh2R140Q/NHD13 DN1/DN2 T-ALL. In vitro treatment of Idh2R140Q/NHD13 thymocytes with enasidenib, a selective inhibitor of mutant IDH2, led to a marked decrease in leukemic cell proliferation. These findings demonstrate that Idh2R140Q/NHD13 mice can serve as a useful in vivo model for the study of EITP ALL development and therapy. We used gene expression arrays to compare the global gene expression profiles between Idh2R140Q/NHD13 DN1/DN2 T-ALL, non-DN1/DN2 cortical T-ALL (CD4+CD8+) and wild-type thymus.

2021-10-23 | GSE181007 | GEO

SCL and LMO1 reprogram thymocytes into self-renewing cells.

Project description:The SCL and LMO1 oncogenic transcription factors reprogram thymocytes into self-renewing pre-leukemic stem cells (pre-LSCs). Here we report that SCL directly interacts with LMO1 to activate the transcription of a self-renewal program coordinated by LYL1. Gene expression profiles of thymocytes from SCL-LMO1 transgenic and age-matched non transgenic Cd3Îµ-/- mice were compared to identify candidate genes that confer self-renewal capability to pre-leukemic thymocytes.

2015-11-05 | E-GEOD-74659 | biostudies-arrayexpress

SCL and LMO1 reprogram thymocytes into self-renewing cells.

2015-11-05 | GSE74659 | GEO

Progression from the preleukemic stage to acute leukemia in TAL1/SCL-LMO1 transgenic mice

Project description:The TAL1/SCL and LMO1 oncogenic transcription factors establish a pre-leukemic state by reprogramming thymocytes into self-renewing pre-leukemic stem cells (pre-LSCs). Pre-TCR signaling accelerates the progression to T-cell acute lymphoblastic leukemia (T-ALL). To directly address the importance of pre-TCR signaling in driving progression to T-ALL, we leverage on Cd3-deficient mice in which pre-TCR signaling and progression through β-selection is abrogated. In the absence of pre-TCR signaling in Cd3ε-deficient SCL-LMO1 transgenic mice, T-ALL onset is delayed by 150 days. Despite the absence of pre-TCR/CD3 signaling in these mice, we show that leukemic thymocytes exhibit the gene expression profiles of thymocytes that have undergone β-selection, i.e. exhibiting a re-activation of pre-TCR-driven proliferation signature, and a down regulation of HEB/TCF12 target genes. Lastly, monoallelic deletion of Heb is sufficient to accelerate T-ALL onset in Cd3ε-deficient SCL-LMO1 transgenic mice. Together, these results underscore the role of HEB/TCF12 as a tumor suppressor in T-ALL.

2022-03-27 | GSE198506 | GEO

Progression from the preleukemic stage to acute leukemia in TAL1/SCL-LMO1 transgenic mice

Project description:Progression from the preleukemic stage to acute leukemia in TAL1/SCL-LMO1 transgenic mice

| PRJNA815658 | ENA

LMO1 Synergizes with MYCN to Promotes Neuroblastoma Initiation and Metastasis

Project description:High levels of LMO1 expression synergizes with MYCN to accelerate neuroblastomagenesis, enhance disease penetrance and promote widespread metastasis in zebrafish. Transcriptomic analysis of human neuroblasotma cells with programed expression of LMO1 vs vector control or neuroblastoma cells with differential endogenous LMO1 expression revealed that gene signitures affecting tumor cell-extracellular matrix interaction are significantly associated with high levels of LMO1 expression. Our findings provide compelling evidence for a major pathogenic role of LMO1 in MYCN-driven neuroblastoma.

2017-07-31 | GSE90087 | GEO

Gene expression profile of human neuroblastoma cell line SHSY-5Y after LMO1 knockdown

Project description:To dissect molecular pathways regulated by LMO1 in neuroblastoma, we performed microarray gene expression profiling in a neuroblastoma cells (SHSY-5Y) after LMO1 knockdown.

2019-11-10 | GSE130747 | GEO

Next generation sequencing analysis of DN1 transcriptomes from Wild type, gl/gl and transgenic CD2-Ostm1 gl/gl mice

Project description:The goal of this study is to compare the transcriptome stability of DN1wt versus DN1gl/gl and DN1CD2-Ostm1gl/glTR Methods: DN1 thymocytes mRNA profiles of 19-day-old wild-type (WT), osteopetrotic grey-lethal (gl/gl) and transgenic CD2-Ostm1 gl/gl mice were generated by deep sequencing,DN1 cells from 2-3 mice per genotype were pooled, no technical replicates, using Illumina HiSeq 2000. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: TopHat and Cufflinks. qRT–PCR validation was performed using SYBR Green assays Results: DN1 gl/gl showed a distinctive transcriptome signature in comparison to DN1 wt and DN1 gl/glTR with respectivelly 146 and 205 differentially expressed genes and 205. Migration genes were significantly affected in DN1 gl/gl samples and RAC1 and S1PR1 gene expressions were confirmed using RT-qPCR. Conclusions: RNA seq allowed us to identify the enhanced expression of migration genes (RAC1 and S1PR1) in DN1gl/gl, that were both normalized in the DN1 cells from transgenic gl/glTR mice, which suggests defective T cell migration associated to the osteopetrotic thymus phenotype.

2016-09-01 | GSE72184 | GEO

Next generation sequencing analysis of DN1 transcriptomes from Wild type, gl/gl and transgenic CD2-Ostm1 gl/gl mice

Project description:The goal of this study is to compare the transcriptome stability of DN1wt versus DN1gl/gl and DN1CD2-Ostm1gl/glTR Methods: DN1 thymocytes mRNA profiles of 19-day-old wild-type (WT), osteopetrotic grey-lethal (gl/gl) and transgenic CD2-Ostm1 gl/gl mice were generated by deep sequencing,DN1 cells from 2-3 mice per genotype were pooled, no technical replicates, using Illumina HiSeq 2000. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: TopHat and Cufflinks. qRTâ??PCR validation was performed using SYBR Green assays Results: DN1 gl/gl showed a distinctive transcriptome signature in comparison to DN1 wt and DN1 gl/glTR with respectivelly 146 and 205 differentially expressed genes and 205. Migration genes were significantly affected in DN1 gl/gl samples and RAC1 and S1PR1 gene expressions were confirmed using RT-qPCR. Conclusions: RNA seq allowed us to identify the enhanced expression of migration genes (RAC1 and S1PR1) in DN1gl/gl, that were both normalized in the DN1 cells from transgenic gl/glTR mice, which suggests defective T cell migration associated to the osteopetrotic thymus phenotype. DN1 thymocytes mRNA profiles of 19-day-old wild-type (WT), osteopetrotic grey-lethal (gl/gl) and transgenic CD2-Ostm1 gl/gl mice were compared by deep sequencing,DN1 cells from 2-3 mice per genotype were pooled, no technical replicates, using Illumina HiSeq 2000.

2016-09-01 | E-GEOD-72184 | biostudies-arrayexpress