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Concept

Dicer

Publications associées (22)

Astrocyte-targeting RNA interference against mutated superoxide dismutase 1 induces motoneuron plasticity and protects fast-fatigable motor units in a mouse model of amyotrophic lateral sclerosis

Patrick Aebischer, Bernard Schneider, Cylia Cloé Rochat, Nathalie Marie Géraldine Bernard

In amyotrophic lateral sclerosis (ALS) caused by SOD1 gene mutations, both cell-autonomous and noncell-autonomous mechanisms lead to the selective degeneration of motoneurons (MN). Here, we evaluate the therapeutic potential of gene therapy targeting mutat ...

WILEY2022

Allosteric control of type I-A CRISPR-Cas3 complexes and establishment as effective nucleic acid detection and human genome editing tools

Henning Paul-Julius Stahlberg, Dongchun Ni

Type I CRISPR-Cas systems typically rely on a two-step process to degrade DNA. First, an RNA-guided complex named Cascade identifies the complementary DNA target. The helicase-nuclease fusion enzyme Cas3 is then recruited in trans for processive DNA degrad ...

CELL PRESS2022

Rae1/YacP, a new endoribonuclease involved in ribosome-dependent mRNA decay in Bacillus subtilis

Jérémie Piton

The PIN domain plays a central role in cellular RNA biology and is involved in processes as diverse as rRNA maturation, mRNA decay and telomerase function. Here, we solve the crystal structure of the Rae1 (YacP) protein of Bacillus subtilis, a founding mem ...

Wiley2017

Gene Network Polymorphism Illuminates Loss and Retention of Novel RNAi Silencing Components in the Cryptococcus Pathogenic Species Complex

Marianna Feretzaki

RNAi is a ubiquitous pathway that serves central functions throughout eukaryotes, including maintenance of genome stability and repression of transposon expression and movement. However, a number of organisms have lost their RNAi pathways, including the mo ...

Public Library of Science2016

Role of microRNAs in tumor-associated macrophages

Caroline Maïté Monnard

Tumor-associated macrophages (TAMs) infiltrate both mouse and human tumors, typically in high numbers, and display complex interactions with cancer cells, endothelial cells (ECs) and other immune cells. TAMs comprise molecularly distinct subsets. Two such ...

EPFL2016

Dicer1 imparts essential survival cues in Notch-driven T-ALL via miR-21-mediated tumor suppressor Pdcd4 repression

Freddy Radtke, Ute Koch, Fabian Junker

The modulatory function of individual microRNAs (miRNAs) in Notch-driven T-cell acute lymphoblastic leukemias (T-ALLs) has recently been established. Although protumorigenic and tumor-suppressive miRNAs are implicated in disease onset in murine models of N ...

American Society of Hematology2015

Regulation of the mRNA silencing activity of Bicaudal-C

Florian Urs Bernet

Cilia dysfunction is a common factor underlying left-right axis malformation and the pathogenesis of virtually all known renal cystic diseases. Mutations in the RNA-binding protein Bicaudal-C (Bicc1) provoke cystic kidneys reminiscent of polycystic kidney ...

EPFL2015

Metabolic Needs and Capabilities of Toxoplasma gondii through Combined Computational and Experimental Analysis

Vassily Hatzimanikatis, Stepan Tymoshenko

Toxoplasma gondii is a human pathogen prevalent worldwide that poses a challenging and unmet need for novel treatment of toxoplasmosis. Using a semi-automated reconstruction algorithm, we reconstructed a genome-scale metabolic model, ToxoNet1. The reconstr ...

Public Library Science2015

Bicc1 Polymerization Regulates the Localization and Silencing of Bound mRNA

Daniel Constam, Benjamin Marcel Daniel Rothé, Lucía Carolina Leal Esteban, Florian Urs Bernet

Loss of the RNA-binding protein Bicaudal-C (Bicc1) provokes renal and pancreatic cysts as well as ectopic Wnt/beta-catenin signaling during visceral left-right patterning. Renal cysts are linked to defective silencing of Bicc1 target mRNAs, including adeny ...

American Society for Microbiology2015

Transposable elements and their KRAB/KAP1 controllers broadly regulate transcription in adult human cells

Flavia Marzetta

KAP1 is a universal corepressor for the large family of KRAB-ZFP proteins that coordinates epigenetic silencing of endogenous retroelements (EREs) during early embryonic development. This process is essential not just to prevent replication of EREs, but al ...

EPFL2015

Searching the coding region for microRNA targets

Jiri Vanicek, Ray Marcel Marin Florez, Miroslav Sulc

Finding microRNA targets in the coding region is difficult due to the overwhelming signal encoding the amino acid sequence. Here, we introduce an algorithm (called PACCMIT-CDS) that finds potential microRNA targets within coding sequences by searching for ...

2013

Highly Specific Methods for the Prediction of Genes Regulated by MicroRNAs

Ray Marcel Marin Florez

MicroRNAs (miRNAs) comprise a large set of short noncoding RNAs that bind to messenger RNAs (mRNAs) to reduce their translation into functional proteins. Computational prediction of miRNA targets is the first stage in the discovery and validation of new re ...

EPFL2012

Unique Cell-Type-Specific Distributions and Functions of Brain MicroRNAs

Ana Jovicic

MicroRNAs (miRNAs) are small non-coding RNAs involved in post-transcriptional regulation of gene expression. The first miRNA was discovered less than 20 years ago in the context of studying Caenorabditis elegans development. The discovery of the second miR ...

EPFL2011

Human U6 promoter drives stronger shRNA activity than its schistosome orthologue in Schistosoma mansoni and human fibrosarcoma cells

Nicola Harris, Raphaël Duvoisin

Blood flukes or schistosomes are the causative agents of human schistosomiasis, one of the major neglected tropical diseases. Draft genome sequences have been reported for schistosomes, but functional genomics tools are needed to investigate the role and e ...

2011

Lineage-specific transcriptional regulation of DICER by MITF in melanocytes

Friedrich Beermann

DICER is a central regulator of microRNA maturation. However, little is known about mechanisms regulating its expression in development or disease. While profiling miRNA expression in differentiating melanocytes, two populations were observed: some upregul ...

Elsevier2010

Exploring the transcriptional landscape of plant circadian rhythms using genome tiling arrays

Felix Naef

BACKGROUND: Organisms are able to anticipate changes in the daily environment with an internal oscillator know as the circadian clock. Transcription is an important mechanism in maintaining these oscillations. Here we explore, using whole genome tiling arr ...

BioMed Central2009

Sustained Effects of Nonallele-Specific Huntingtin Silencing

Nicole Déglon

Objective: Huntington's disease (HD) is a fatal autosomal dominant neurodegenerative disorder caused by a polyglutamine expansion in the huntingtin (htt) protein. No cure is available to date to alleviate neurodegeneration. Recent studies have demonstrated ...

Wiley-Blackwell2009

Characterization of APOBEC3G binding to 7SL RNA

Didier Trono, Bastien Mangeat

Human APOBEC3 proteins are editing enzymes that can interfere with the replication of exogenous retroviruses such as human immunodeficiency virus (HIV), hepadnaviruses such as hepatitis B virus (HBV), and with the retrotransposition of endogenous retroelem ...

2008

Mécanismes d'action du TiO2 illuminé sur Escherichia Coli

Gaëtan Gogniat

The increase of bacterial resistance against various disinfection processes is a worrying phenomenon. As a consequence, the search for alternative techniques for fighting micro-organisms has become one of the major issues of these last few years. In this d ...

EPFL2006

Structure of PTB Bound to RNA: Specific Binding and Implications for Splicing Regulation

Luc Reymond, Philipp Wenter

The polypyrimidine tract binding protein (PTB) is a 58-kDa RNA binding protein involved in multiple aspects of mRNA metab., including the repression of alternative exons. We have detd. the soln. structures of the four RNA binding domains (RBDs) of PTB, eac ...

American Association for the Advancement of Science2005