949 results found
    1. Chromosomes and Gene Expression

    A tudor domain protein, SIMR-1, promotes siRNA production at piRNA-targeted mRNAs in C. elegans

    Kevin I Manage et al.
    SIMR-1 acts downstream of the piRNA pathway to promote siRNA amplification by the Mutator complex and localizes to perinuclear foci distinct from Mutator foci, P granules and Z granules.
    1. Chromosomes and Gene Expression

    Dimerisation of the PICTS complex via LC8/Cut-up drives co-transcriptional transposon silencing in Drosophila

    Evelyn L Eastwood et al.
    Heterochromatin formation at transposon loci depends on dimerisation of the effector complex that elicits co-transcriptional silencing and this requirement is fulfilled by co-option of the conserved dimerisation hub protein, Cut-up/LC8.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Repression of interrupted and intact rDNA by the SUMO pathway in Drosophila melanogaster

    Yicheng Luo et al.
    SUMO-dependent pathway is responsible for selective repression of damaged rDNA and silencing of intact surplus units revealing an epigenetic mechanism that controls the differential expression of identical sequences in the same cell.
    1. Chromosomes and Gene Expression

    piRNA-guided co-transcriptional silencing coopts nuclear export factors

    Martin H Fabry et al.
    A member of the Drosophila Nuclear Export Factor (Nxf) family, Nxf2, forms part of the piRNA-dependent co-transcriptional silencing complex and is essential for transposon repression in fly ovaries.
    1. Immunology and Inflammation

    MicroRNA-122 supports robust innate immunity in hepatocytes by targeting the RTKs/STAT3 signaling pathway

    Hui Xu et al.
    The liver-specific miRNA microRNA-122 plays a previously unknown role in hepatocyte intrinsic innate immunity by targeting the RTKs/STAT3 signaling pathway.
    1. Chromosomes and Gene Expression

    Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development

    Li Zhou et al.
    Selective degradation of mature miRNAs shapes temporal miRNA expression patterns and is important for proper regulation of target genes to support normal development of Drosophila embryos.
    1. Cancer Biology

    Hyperactivation of ERK by multiple mechanisms is toxic to RTK-RAS mutation-driven lung adenocarcinoma cells

    Arun M Unni et al.
    Cancer cells driven by mutations in KRAS or EGFR are dependent on DUSP6 to prevent ERK-induced cell death, creating a novel vulnerability for targeted therapy.
    1. Chromosomes and Gene Expression
    2. Neuroscience

    Developmental programming modulates olfactory behavior in C. elegans via endogenous RNAi pathways

    Jennie R Sims et al.
    The OSM-9 TRPV channel is differentially regulated due to developmental programming via modulation by TGF-β signaling, endogenous RNAi and chromatin remodeling pathways.
    1. Chromosomes and Gene Expression
    2. Stem Cells and Regenerative Medicine

    MicroRNA-deficient mouse embryonic stem cells acquire a functional interferon response

    Jeroen Witteveldt et al.
    MiRNA-mediated suppression of MAVS expression in embryonic stem cells is necessary to inactivate the type I interferon response.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Control of RNA viruses in mosquito cells through the acquisition of vDNA and endogenous viral elements

    Michel Tassetto et al.
    Virus infection in mosquitoes initiates a highly discriminatory process in which fragments of viral RNA are reverse transcribed to create DNA copies that serve as templates of small antiviral RNAs.

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