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• W2142343803 abstract "Transcription factor AP-2α mediates transcription of a number of genes implicated in mammalian development, cell proliferation and carcinogenesis. In the current study, we identified Hoxa7, Hoxa9 and Hox cofactor Meis1 as AP-2α target genes, which are involved in myeloid leukemogenesis. Luciferase reporter assays revealed that overexpression of AP-2α activated transcription activities of Hoxa7, Hoxa9 and Meis1, whereas siRNA of AP-2α inhibited their transcription activities. We found that AP-2 binding sites in regulatory regions of three genes activated their transcription by mutant analysis and AP-2α could interact with AP-2 binding sites in vivo by chromatin immunoprecipitation (ChIP). Further results showed that the AP-2α shRNA efficiently inhibited mRNA and protein levels of Hoxa7, Hoxa9 and Meis1 in AML cell lines U937 and HL60. Moreover, decreased expression of AP-2α resulted in a significant reduction in the growth and proliferation of AML cells in vitro. Remarkably, AP-2α knockdown leukemia cells exhibit decreased tumorigenicity in vivo compared with controls. Finally, AP-2α and target genes in clinical acute myeloid leukemia samples of M5b subtype revealed variable expression levels and broadly paralleled expression. These data support a role of AP-2α in mediating the expression of Hoxa genes in acute myeloid leukemia to influence the proliferation and cell survival." @default.
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• W2142343803 date "2013-08-01" @default.
• W2142343803 modified "2023-10-10" @default.
• W2142343803 title "Transcription factor AP-2α regulates acute myeloid leukemia cell proliferation by influencing Hoxa gene expression" @default.
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• W2142343803 doi "https://doi.org/10.1016/j.biocel.2013.04.024" @default.
• W2142343803 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23660297" @default.
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