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Gene expression changes induced by overexpression of IDH1mut in the sorted mouse bone marrow cells

ABSTRACT: Mutations in the enzymes IDH1 and IDH2 have been identified in a wide variety of tumors like glioma, chondrosarcoma, thyroid cancer, lymphoma, melanoma, and in acute myeloid leukemia. Mutated IDH1/2 produces the metabolite 2-hydroxyglutarate (2HG), which interferes with epigenetic regulation of gene expression, and thus may promote tumorigenesis. HoxA9 immortalized bone marrow cells from C57BJ/6 mice were transduced with either empty vector or pSF91-IDH1wt-IRES-EGFP, or pSF91-IDH1mut-IRES-GFP and transplanted in irradiated recipient mice. Four weeks after transplantation, GFP+ cells were sorted from mouse bone marrow, from which total RNA was extracted and subjected to microarray analysis.

ORGANISM(S): Mus musculus

SUBMITTER: Anuhar Chaturvedi 

PROVIDER: E-GEOD-45019 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Mutations in the metabolic enzymes isocitrate dehydrogenase 1 (IDH1) and 2 (IDH2) are frequently found in glioma, acute myeloid leukemia (AML), melanoma, thyroid cancer, and chondrosarcoma patients. Mutant IDH produces 2-hydroxyglutarate (2HG), which induces histone- and DNA-hypermethylation through inhibition of epigenetic regulators. We investigated the role of mutant IDH1 using the mouse transplantation assay. Mutant IDH1 alone did not transform hematopoietic cells during 5 months of observat  ...[more]

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