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MSI2 is required for maintaining activated myelodysplastic syndrome stem cells

ABSTRACT: Analysis of musashi2 contribution towards maintaing myelodysplastic phenotype in stem cells. We find that musashi2 plays an integral role in maintaining the myelodysplastic phenotype

ORGANISM(S): Mus musculus

PROVIDER: GSE76840 | GEO | 2016/02/16

SECONDARY ACCESSION(S): PRJNA308744

REPOSITORIES: GEO

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MSI2 is required for maintaining activated myelodysplastic syndrome stem cells

Project description:Analysis of musashi2 contribution towards maintaing myelodysplastic phenotype in stem cells. We find that musashi2 plays an integral role in maintaining the myelodysplastic phenotype Control, NUP98-HOXD13; NHD13, NHD13/MSI2 bone marrow was transplated allowed to engraft into lethally irradiated congenic CD45.1 animals. Mice were then fed doxycycline to induce MSI2 overexpression. Mice were induced for 3 months and then CD45.2 Lineage lo Sca1+ and Kit+ cells were sorted and then assessed for gene expression.

2016-02-16 | E-GEOD-76840 | biostudies-arrayexpress

MSI2 is required for maintaining activated myelodysplastic syndrome stem cells.

Project description:Myelodysplastic syndromes (MDS) are driven by complex genetic and epigenetic alterations. The MSI2 RNA-binding protein has been demonstrated to have a role in acute myeloid leukaemia and stem cell function, but its role in MDS is unknown. Here, we demonstrate that elevated MSI2 expression correlates with poor survival in MDS. Conditional deletion of Msi2 in a mouse model of MDS results in a rapid loss of MDS haematopoietic stem and progenitor cells (HSPCs) and reverses the clinical features of MDS. Inversely, inducible overexpression of MSI2 drives myeloid disease progression. The MDS HSPCs remain dependent on MSI2 expression after disease initiation. Furthermore, MSI2 expression expands and maintains a more activated (G1) MDS HSPC. Gene expression profiling of HSPCs from the MSI2 MDS mice identifies a signature that correlates with poor survival in MDS patients. Overall, we identify a role for MSI2 in MDS representing a therapeutic target in this disease.

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Myelodysplastic syndrome: NUP98-HoxD13 (NHD13) expression effect on hematopoietic stem cells

Project description:Analysis of Lin-c-Kit+Sca-1- haematopoietic stem cells (HSCs) expressing the Nup98-HoxD13 (NHD13) fusion gene. NHD13 induces myelodysplastic syndrome (MDS) in mice. Results provide insight into the molecular basis of the myelodysplastic phenotype WT mouse HSCs were compared to an NHD13 mutant sequenced in triplicate on a HiSeq 2000

2016-07-03 | E-GEOD-66264 | biostudies-arrayexpress

Myelodysplastic syndrome: NUP98-HoxD13 (NHD13) expression effect on hematopoietic stem cells

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Predictors of Myelodysplastic Syndrome in Minnesota

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Aberrant alternative splicing profiling for myelodysplastic syndrome (MDS) patients

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Myelodysplastic/myeloproliferative neoplasms

Project description:This SuperSeries is composed of the following subset Series: GSE21948: High Density custom Agilent 44K CGH array analysis of 7q and TET2 region in myelodysplastic/myeloproliferative neoplasms GSE21990: Affymetrix SNP 6.0 array data for myelodysplastic/myeloproliferative neoplasms Refer to individual Series

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