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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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RNA deep sequencing to compare genome-wide differences between PRMT5/knockdown and control AML cells

ABSTRACT: We report the pro-leukemic activities of PRMT5 in AML partly via modulating the transcription of key genes. The goal of this experiment is to confirm the changes observed in expression of genes targeted by PRMT5 activities. RNA Deep sequencing was employed to validate and reproduce the changes measured by quantitative reverse transcription polymerase chain reaction (qRTâPCR) techniques. Total RNA samples from MV4-11 cell line (FLT3-ITD AML) following PRMT5 knockdown using specific short hairpin RNA (shRNA) was used to compare gene expression pattern between PRMT5/Knockdown and control (control: MV4-11 cells transduced with scramble control).

ORGANISM(S): Homo sapiens

SUBMITTER: Xiwei Wu

PROVIDER: E-GEOD-75215 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Next generation sequencing identifies small RNA expression in FLT3-ITD+ AML (MV4-11) cell lines

Project description:The expression level of microRNAs in FLT3-ITD+ AML is unknown. Using empty vector (EV) lentiviral CRISPR-Cas9 infected FLT3-ITD+ AML cell lines (MV4-11 cells), we performed next generation RNA sequencing on small RNAs to determine microRNA expression level in these cells. We found a variety of evolutionarily conserved and non-conserved microRNAs expressed in our cells of interest. Small RNAseq on EV lentiviral CRISPR-Cas9 infected MV4-11 cell lines was performed on triplicate cultures.

2016-07-01 | E-GEOD-71543 | biostudies-arrayexpress

Expression profile of wild type (WT) vs miR-155-/- in FLT3-ITD+ AML (MV4-11) cell lines

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2016-07-01 | E-GEOD-71541 | biostudies-arrayexpress

PRMT5 protects genomic integrity during global DNA demethylation in primordial germ cells and preimplantation embryos

Project description:Primordial germ cells (PGCs) and preimplantation embryos undergo epigenetic reprogramming, which entails comprehensive erasure of DNA methylation. We found that PRMT5, an arginine methyltransferase, translocates from the cytoplasm to the nucleus during this process. Here we show that conditional loss of PRMT5 in early PGCs caused complete male and female sterility, which is preceded by upregulation of LINE1 and IAP transposons and DNA damage response. Similarly, loss of maternal-zygotic PRMT5 also leads to IAP upregulation and early embryonic lethality. We detected the PRMT5-catalysed repressive H2A/H4R3me2s modification on LINE1 and IAP in early wildtype PGCs, directly implicating this mark in the maintenance of transposon silencing during DNA hypomethylation. PRMT5 subsequently translocates back to the cytoplasm of PGCs to participate in the previously described PIWI-interacting RNA (piRNA) pathway that promotes transposon silencing via de novo DNA re-methylation. Thus, PRMT5 has a novel direct role in genome defense during preimplantation development and in PGCs at the time of global DNA demethylation PGCs mRNA profiles of embryonic day 11.5 dpc control (Blimp1Cre;Prmt5flox/+) and Prmt5 germ cell knockout (Blimp1Cre;Prmt5 flox/flox) were generated by deep sequencing (SOLiD next generation sequencing).

2014-09-09 | E-GEOD-61216 | biostudies-arrayexpress

PRMT5 protects genomic integrity during global DNA demethylation in primordial germ cells and preimplantation embryos

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Expression profile of wild type (WT) vs miR-155-/- in FLT3-ITD+ AML (MV4-11) cell lines

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Regulation of constitutive and alternative splicing by PRMT5 reveals a role for Mdm4 pre-mRNA in sensing defects in the spliceosomal machinery (RNA-Seq)

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2013-09-13 | E-GEOD-45284 | biostudies-arrayexpress

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Project description:Analysis of gene expression in lung and prostate cancer cells expressing non-target (NT), p44/wdr77. or PRMT5 shRNA. Results provide important information on how p44/wdr77 and PRMT5 control cellular proliferation. Total RNA obtained from cells expressing NT, p44/wdr77, or PRMT5 shRNA.

2014-04-14 | E-GEOD-56757 | biostudies-arrayexpress

The Sm protein methyltransferase PRMT5, is not required for primordial germ cell specification in mice

Project description:PRMT5 is a type II protein arginine methyltransferase with roles in stem cell biology, reprogramming, cancer and neurogenesis. During embryogenesis in the mouse it was hypothesized that PRMT5 functions with the master germline determinant BLIMP1 to promote primordial germ cell (PGC) specification. Using a Blimp1-Cre germline conditional knockout, we discovered that Prmt5 has no major role in murine germline specification, or the first global epigenetic reprogramming event involving depletion of cytosine methylation from DNA and histone H3 lysine 9 dimethylation from chromatin. Instead, we discovered that PRMT5 functions at the conclusion of PGC reprogramming I to promote proliferation, survival and expression of the gonadal germline program as marked by MVH. We show that PRMT5 regulates gene expression by promoting methylation of the Sm spliceosomal proteins, and significantly altering the spliced repertoire of RNAs in mammalian embryonic cells and primordial cells. Examination of transcriptional profile of iPHet (Control) vs. iPKO (Prmt5 knock out) 2i Embryonic Stem Cells

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