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Orchestrated intron retention regulates normal granulocyte differentiation

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Mus musculus Homo sapiens

PROVIDER: GSE48307 | GEO | 2013/06/27

SECONDARY ACCESSION(S): PRJNA209615

REPOSITORIES: GEO

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Orchestrated intron retention regulates normal granulocyte differentiation

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2013-06-27 | E-GEOD-48307 | biostudies-arrayexpress

Orchestrated intron retention regulates normal granulocyte differentiation [RNA-Seq]

Project description:Using mRNA-seq, we determined intron retaining genes that were differentially regulated in FACS purified cells at three progressive stages of mouse granulopoiesis; CD34+Kit+Gr-1low promyelocytes, CD34-Kit-Gr-1mid myelocytes and CD34-Kit-Gr-1high granulocytes. We found that IR affects 86 genes, including those specific to granulocyte (Lyz2 and MMP8) and nuclear architecture (Lmnb1 and Lbr). IR was associated with the decrease in protein levels measured by mass spectrometry (P=0.0015, binomial test). There was a significant overlap of IR between human and mouse (P=2.85E-22, hypergeometric test), showing that IR is conserved.Inhibition of NMD in granulocytes resulted in marked accumulation of 39/86 intron retaining mRNAs (P<0.05, RUV procedure with Holm-Bonferroni correction), indicating that IR triggers NMD to downregulate mRNA and protein expression. Sequencing of polyadenylated RNA from three types of myeloid cells (promyelocytes, myelocytes and granulocytes) using Illumina GAIIx

2013-06-27 | E-GEOD-48305 | biostudies-arrayexpress

Orchestrated intron retention regulates normal granulocyte differentiation [Affymetrix arrays]

Project description:Using mRNA-seq, we determined intron retaining genes that were differentially regulated in FACS purified cells at three progressive stages of mouse granulopoiesis; CD34+Kit+Gr-1low promyelocytes, CD34-Kit-Gr-1mid myelocytes and CD34-Kit-Gr-1high granulocytes. We found that IR affects 86 genes, including those specific to granulocyte (Lyz2 and MMP8) and nuclear architecture (Lmnb1 and Lbr). IR was associated with the decrease in protein levels measured by mass spectrometry (P=0.0015, binomial test). Inhibition of NMD in granulocytes resulted in marked accumulation of 39/86 intron retaining mRNAs (P<0.05, RUV procedure with Holm-Bonferroni correction), indicating that IR triggers NMD to downregulate mRNA and protein expression. We used Affymetrix's Mouse Gene 1.0 ST array to determine accumulation of RNA-transcripts following inhibition of nonsense-mediated decay in primary mouse granulocytes using caffeine.

2013-06-27 | E-GEOD-48306 | biostudies-arrayexpress

Orchestrated intron retention regulates normal granulocyte differentiation [Affymetrix arrays]

Project description:Using mRNA-seq, we determined intron retaining genes that were differentially regulated in FACS purified cells at three progressive stages of mouse granulopoiesis; CD34+Kit+Gr-1low promyelocytes, CD34-Kit-Gr-1mid myelocytes and CD34-Kit-Gr-1high granulocytes. We found that IR affects 86 genes, including those specific to granulocyte (Lyz2 and MMP8) and nuclear architecture (Lmnb1 and Lbr). IR was associated with the decrease in protein levels measured by mass spectrometry (P=0.0015, binomial test). Inhibition of NMD in granulocytes resulted in marked accumulation of 39/86 intron retaining mRNAs (P<0.05, RUV procedure with Holm-Bonferroni correction), indicating that IR triggers NMD to downregulate mRNA and protein expression.

2013-06-27 | GSE48306 | GEO

Orchestrated intron retention regulates normal granulocyte differentiation [RNA-Seq]

2013-06-27 | GSE48305 | GEO

Orchestrated intron retention regulates normal granulocyte differentiation [RNA-Seq]

Project description:Orchestrated intron retention regulates normal granulocyte differentiation [RNA-Seq]

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An Orchestrated Intron Retention Program in Meiosis Controls Timely Usage of Transcripts during Germ Cell Differentiation.

Project description:Global transcriptome reprogramming during spermatogenesis ensures timely expression of factors in each phase of male germ cell differentiation. Spermatocytes and spermatids require particularly extensive reprogramming of gene expression to switch from mitosis to meiosis and to support gamete morphogenesis. Here, we uncovered an extensive alternative splicing program during this transmeiotic differentiation. Notably, intron retention was largely the most enriched pattern, with spermatocytes showing generally higher levels of retention compared with spermatids. Retained introns are characterized by weak splice sites and are enriched in genes with strong relevance for gamete function. Meiotic intron-retaining transcripts (IRTs) were exclusively localized in the nucleus. However, differently from other developmentally regulated IRTs, they are stable RNAs, showing longer half-life than properly spliced transcripts. Strikingly, fate-mapping experiments revealed that IRTs are recruited onto polyribosomes days after synthesis. These studies reveal an unexpected function for regulated intron retention in modulation of the timely expression of select transcripts during spermatogenesis.

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Genome-wide analysis of gene expression and intron retention during development in a U12-type splicing-deficient zebrafish mutant

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

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Unraveling the Sox4-orchestrated pro-B cell differentiation program: Intricate roles of the RAG and CK1e genes

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Alternative splicing Hltf: intron retention-dependent activation of immune tolerance at the feto-maternal interface

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

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