Genomics

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Cooperation of IRF-4 and IRF-8 deficiencies in the development of hematological malignancies


ABSTRACT: We found that mice deficient in both IRF-4 and IRF-8 develop from a very early age a more aggressive CML-like disease than mice deficient in IRF-8 alone. IRF-4 deficiency dramatically enhanced the effect of IRF-8 deficiency on expansion of granulocyte-monocyte progenitors (GMPs). All mice deficient in both IRF-4 and IRF-8 eventually develop and succumb to a B-lymphoblastic leukemia/lymphoma at approximately 25 weeks of age. The results demonstrate that IRF-4 and IRF-8 deficiencies can cooperate in the development of both myeloid and lymphoid tumors. To gain insights into how loss of IRF-4 affects the transcriptional program underlying leukemogenesis, we analyzed the genome-wide transcription profiles of GMPs from WT, IRF-8 KO and IRF-4/8 DKO mice. Microarray analysis revealed genes differentially expressed in IRF-4/8 DKO and IRF-8 KO GMPs, including genes that are involved in cell growth regulation and/or tumorigenesis.

ORGANISM(S): Mus musculus

PROVIDER: GSE21018 | GEO | 2010/08/22

SECONDARY ACCESSION(S): PRJNA125765

REPOSITORIES: GEO

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