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Analysis of circRNA expression profiles in U937 cells after p62 knockdown

ABSTRACT: Analysis of circRNA expression profiles in U937 cells after p62 knockdown

PROVIDER: PRJNA909176 | ENA |

REPOSITORIES: ENA

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Analysis of circRNA expression profiles in U937 cells after p62 knockdown

Project description:The aim of this study was to investigate the effect of p62 on circRNA and mRNA expression profiles in U-937 cells.

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Analysis of microRNA expression profiles in exosomes derived from acute myeloid leukemia by p62 knockdown and effect on angiogenesis

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Expression data from knockdown of ZXDC1/2 in PMA-treated U937

Project description:ZXDC1 augments the expression of various markers of monocyte/macrophage differentiation when over-expressed in the U937 cell line treated with the phorbol ester PMA. Likewise, knockdown of ZXDC1 restricts the induced expression of these markers. We sought to identify specfic gene targets of ZXDC1 during the process of monocyte/macrophage differentiation in U937 by performing gene expression profiling in cells exhibiting reduced expression of ZXDC1 compared to controls. We used microarray to identify genes regulated by ZXDC during PMA-induced differentiation of U937 monoblasts towards a monocyte/macrophage phenotype An inducible shRNAmir (Tet-On) cell line was established in the U937 background that displayed significant, reproducible, and doxycycline inducible knockdown of ZXDC1. Using this cell line, we created four experimental groups to identify gene targets of ZXDC1 during PMA-induced differention towards a monocyte/macrophage phenotype: Vehicle alone; Vehicle+Doxycycline; PMA alone; PMA+Doxycycline. Each independent group was used for RNA extraction and hybridization on Affymetrix microarray chips.

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Effects of Triad1-knockdown on ribosome/polysome profiles are reversed by Gcn1-knockdown

Project description:Previously, we identified ARIH2, the gene encoding Triad1, as a HoxA10 target gene. We found that HoxA10-induced expression of Triad1 was necessary for termination of emergency granulopoiesis, and antagonized leukemogenesis in a murine model of KMT2A-rearranged AML. In this study, we found that knockdown Triad1 increased polysome-specific mRNAs regulating the cellular response to stress, the DNA-damage response, ribosomal biogenesis, or protein catabolism, but decreased mRNAs regulating mitosis, DNA-repair, DNA and RNA metabolism, or Tp53 activity in U937 cells. Polysome-specific mRNAs for Solute Carrier Proteins (SLCs) were also increased by Triad1-knockdown, consistent with correction of metabolic defects during the ISR. This included SLCs involved in import of amino acids, long chain fatty acids and glucose, and lactate export. In comparison of polysome-specific mRNA profiles with Triad1-knockdown versus knockdown of Triad1 plus Gcn1, we identified the same gene and pathway differences as in comparison of Triad1-knockdown to control cells. There were only minor differences in polysome specific mRNAs in cells with Triad1- plus Gcn1-knockdown versus control cells, encompassing fewer differences than with Triad1-knockdown alone. This suggested that Triad1-knockdown on ribosome/polysome profiles are reversed by Gcn1-knockdown in U937 cells.

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Effect of DIS3 knockdown on circRNA expression

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