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Expression data from E2f7/E2f8 and E2f1/E2f2/E2f3 null liver (Affymetrix)

ABSTRACT: To understand the underlying cause and mechanisms of changes in hepatocyte ploidy upon Albumin-Cre mediated deletion of E2f7&8 and Mx1-Cre mediated deletion of E2f1,2&3, we analysed global gene expression of 6 weeks and 2 months liver tissues.

ORGANISM(S): Mus musculus

PROVIDER: GSE32354 | GEO | 2012/08/31

SECONDARY ACCESSION(S): PRJNA154901

REPOSITORIES: GEO

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Expression data from E2f7/E2f8 and E2f1/E2f2/E2f3 null liver (Affymetrix)

Project description:To understand the underlying cause and mechanisms of changes in hepatocyte ploidy upon Albumin-Cre mediated deletion of E2f7&8 and Mx1-Cre mediated deletion of E2f1,2&3, we analysed global gene expression of 6 weeks and 2 months liver tissues. RNA was extracted from liver tissues. Gene deletion in samples confirmed by PCR genotyping of DNA isolated from each sample.

2012-08-31 | E-GEOD-32354 | biostudies-arrayexpress

Expression data from E2f7/E2f8 and E2f1/E2f2/E2f3 null and wild type liver along with E2f7/E2f8 null and wild type trophoblast giant cells (nCounter)

2012-08-31 | GSE32353 | GEO

Expression data from E2f7/E2f8 and E2f1/E2f2/E2f3 null and wild type liver along with E2f7/E2f8 null and wild type trophoblast giant cells (nCounter)

Project description:To understand the underlying cause and mechanisms of changes in hepatocyte ploidy upon Albumin-Cre mediated deletion of E2f7&8 and Mx1-Cre mediated deletion of E2f1,2&3 and germline deleted trophoblast giant cells, we analysed global gene expression of 6 weeks and 2 months liver tissues. RNA was extracted from liver tissues using trizol method and Arcturus PicoPure RNA Isolation Kit for laser capture microdisected trophoblast giant cells. Gene deletion in samples confirmed by PCR genotyping of DNA isolated from each sample.

2012-08-31 | E-GEOD-32353 | biostudies-arrayexpress

E2f7/E2f8 and E2f1/E2f2/E2f3 null and wild type liver along with E2f7/E2f8 null and wild type trophoblast giant cells

Project description:This SuperSeries is composed of the following subset Series: GSE32353: Expression data from E2f7/E2f8 and E2f1/E2f2/E2f3 null and wild type liver along with E2f7/E2f8 null and wild type trophoblast giant cells (nCounter) GSE32354: Expression data from E2f7/E2f8 and E2f1/E2f2/E2f3 null liver (Affymetrix) Refer to individual Series

2012-08-31 | E-GEOD-32355 | biostudies-arrayexpress

E2f7/E2f8 and E2f1/E2f2/E2f3 null and wild type liver along with E2f7/E2f8 null and wild type trophoblast giant cells

Project description:This SuperSeries is composed of the SubSeries listed below.

2012-08-31 | GSE32355 | GEO

Expression data from E2f7/E2f8/E2f3a null placentas and embryos

Project description:To understand the underlying cause and mechanisms of embryonic lethality observed in combined loss of E2f7 and E2f8, we compared global gene expression profiles of wild type, germline deleted and sox2-Cre/Cyp19-Cre deleted embryos and placentas. RNA was extracted from E10.5 embryos and placentas. Gene deletion in samples confirmed by PCR genotyping of DNA isolated from each sample.

2012-08-31 | E-GEOD-30488 | biostudies-arrayexpress

Expression data from E2f7/E2f8/E2f3a null placentas and embryos

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E2f2 induces cone photoreceptor apoptosis independent of E2f1 and E2f3.

Project description:The 'activating' E2fs (E2f1-3) are transcription factors that potently induce quiescent cells to divide. Work on cultured fibroblasts suggested they were essential for division, but in vivo analysis in the developing retina and other tissues disproved this notion. The retina, therefore, is an ideal location to assess other in vivo adenovirus E2 promoter binding factor (E2f) functions. It is thought that E2f1 directly induces apoptosis, whereas other activating E2fs only induce death indirectly by upregulating E2f1 expression. Indeed, mouse retinoblastoma (Rb)-null retinal neuron death requires E2f1, but not E2f2 or E2f3. However, we report an entirely distinct mechanism in dying cone photoreceptors. These neurons survive Rb loss, but undergo apoptosis in the cancer-prone retina lacking both Rb and its relative p107. We show that while E2f1 killed Rb/p107 null rod, bipolar and ganglion neurons, E2f2 was required and sufficient for cone death, independent of E2f1 and E2f3. Moreover, whereas E2f1-dependent apoptosis was p53 and p73-independent, E2f2 caused p53-dependent cone death. Our in vivo analysis of cone photoreceptors provides unequivocal proof that E2f-induces apoptosis independent of E2f1, and reveals distinct E2f1- and E2f2-activated death pathways in response to a single tumorigenic insult.

| S-EPMC3679457 | biostudies-literature

Microarray gene expression profiling in E2f7 and E2f8 deleted liver compared to control in mice

Project description:Two condition experiment were compared: Wild type vs. E2f7/8 dko mouse liver. Biological replicates: two wild type replicates and two E2f7/8 dko replicates for each of 3-wk, 4-wk and 16-wk age groups.

2012-11-05 | E-MEXP-3384 | biostudies-arrayexpress

DNA-damage response control of E2F7 and E2F8.

Project description:Here, we report that the two recently identified E2F subunits, E2F7 and E2F8, are induced in cells treated with DNA-damaging agents where they have an important role in dictating the outcome of the DNA-damage response. The DNA-damage-dependent induction coincides with the binding of E2F7 and E2F8 to the promoters of certain E2F-responsive genes, most notably that of the E2F1 gene, in which E2F7 and E2F8 coexist in a DNA-binding complex. As a consequence, E2F7 and E2F8 repress E2F target genes, such as E2F1, and reducing the level of each subunit results in an increase in E2F1 expression and activity. Importantly, depletion of either E2F7 or E2F8 prevents the cell-cycle effects that occur in response to DNA damage. Thus, E2F7 and E2F8 act upstream of E2F1, and influence the ability of cells to undergo a DNA-damage response. E2F7 and E2F8, therefore, underpin the DNA-damage response.

| S-EPMC2267382 | biostudies-literature

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