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Concept

Forçage génétique

Publications associées (20)

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

Rational design of protein switches: applications in synthetic biology and cancer immunotherapy

Sailan Shui

Synthetic biology aims to engineer cells as miniature biological devices to sense, process, and respond to exogenous stimuli. Protein switches are designed to sense and respond to various molecular queues in a fast and specific manner, which fits the requi ...

EPFL2022

A ribonucleoprotein transfection strategy for CRISPR/Cas9-mediated gene editing and single cell cloning in rainbow trout cells

Kristin Schirmer

Background The advent of the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 technology marked the beginning of a new era in the field of molecular biology, allowing the efficient and precise creation of targeted mutations in the ge ...

2021

KRAB-zinc finger protein gene expansion in response to active retrotransposons in the murine lineage

Didier Trono, Alberto De Iaco

The Krüppel-associated box zinc finger protein (KRAB-ZFP) family diversified in mammals. The majority of human KRAB-ZFPs bind transposable elements (TEs), however, since most TEs are inactive in humans it is unclear whether KRAB-ZFPs emerged to suppress TE ...

2020

Computational design of anti-CRISPR proteins with improved inhibition potency

Wei Sun, Bruno Emanuel Ferreira De Sousa Correia, Sandrine Madeleine Suzanne Georgeon, Stéphane Rosset, Zander Harteveld, Andreas Scheck

Anti-CRISPR (Acr) proteins are powerful tools to control CRISPR-Cas technologies. However, the available Acr repertoire is limited to naturally occurring variants. Here, we applied structure-based design on AcrIIC1, a broad-spectrum CRISPR-Cas9 inhibitor, ...

NATURE PUBLISHING GROUP2020

Assessing Public Opinion on CRISPR-Cas9: Combining Crowdsourcing and Deep Learning

Marcel Salathé, Martin Mathias Müller

Background: The discovery of the CRISPR-Cas9-based gene editing method has opened unprecedented new potential for biological and medical engineering, sparking a growing public debate on both the potential and dangers of CRISPR applications. Given the speed ...

JMIR PUBLICATIONS, INC2020

Gene drives for schistosomiasis transmission control

Francisco Javier Perez Saez

Schistosomiasis is one of the most important and widespread neglected tropical diseases (NTD), with over 200 million people infected in more than 70 countries; the disease has nearly 800 million people at risk in endemic areas. Although mass drug administr ...

2019

Allele-specific gene editing prevents deafness in a model of dominant progressive hearing loss

Bernard Schneider, Paola Andrea Solanes Vega, Sofia Carmen Suzanne Spataro

Since most dominant human mutations are single nucleotide substitutions(1,2), we explored gene editing strategies to disrupt dominant mutations efficiently and selectively without affecting wild-type alleles. However, single nucleotide discrimination can b ...

NATURE PUBLISHING GROUP2019

Impact of genome architecture on the functional activation and repression of Hox regulatory landscapes

Denis Duboule, Lucille Delisle

Background The spatial organization of the mammalian genome relies upon the formation of chromatin domains of various scales. At the level of gene regulation in cis, collections of enhancer sequences define large regulatory landscapes that usually match wi ...

2019

Development of microfluidic tools and methods for the biochemical characterization of scFv and Cas9 affinity reagents and their applications in molecular detection

Ekaterina Emilova Petrova

Recent progress in protein engineering, empowered by the rapidly evolving fields of synthetic biology and DNA synthesis, has enabled the generation of various custom-designed proteins. Their thorough analysis has led to applications in areas including medi ...

EPFL2018

In Vivo Molecular Bioluminescence Imaging: New Tools and Applications

Elena Goun, Hacer Karatas

in vivo bioluminescence imaging (BLi) is an optical molecular imaging technique used to visualize molecular and cellular processes in health and diseases and to follow the fate of cells with high sensitivity using luciferase-based gene reporters. The high ...

Elsevier2017

Collection, access and use of human genetic information for precision medicines: Risk governance considerations

Marie-Valentine Renée Agnès Florin

Gene technologies and their application by industry are developing rapidly, particularly in the US and in China. Yet, governance of the field of genomic for precision medicine is developing more slowly and needs to catch up. The rapid developments in scien ...

International Risk Governance Council (IRGC)2016

Assessing the role of Hes1 and identification of target genes in human and murine T-ALL

Silvia Wirth

The Notch signalling pathway is an ancient cell signalling mechanism that enables short-range communications between cells and controls a broad spectrum of cell fates and developmental processes. In the haematopoietic system Notch signalling has been linke ...

EPFL2014

A chemostat array enables the spatio-temporal analysis of the yeast proteome

Michaël Unser, Sebastian Maerkl, Felix Naef, Ricard Delgado Gonzalo, Arun Stephen Rajkumar, Nicolas Dénervaud, Johannes Becker

Observing cellular responses to perturbations is central to generating and testing hypotheses in biology. We developed a massively parallel microchemostat array capable of growing and observing 1,152 yeast-GFP strains on the single-cell level with 20 min t ...

National Academy of Sciences2013

Adaptive Response of Group B Streptococcus to High Glucose Conditions: New Insights on the CovRS Regulation Network

Isabella Santi

Although the contribution of carbohydrate catabolism to bacterial colonization and infection is well recognized, the transcriptional changes during these processes are still unknown. In this study, we have performed comparative global gene expression analy ...

Public Library of Science2013

Extent and Patterns of MGMT Promoter Methylation in Glioblastoma- and Respective Glioblastoma-Derived Spheres

Purpose: Quantitative methylation-specific tests suggest that not all cells in a glioblastoma with detectable promoter methylation of the O6-methylguanine DNA methyltransferase (MGMT) gene carry a methylated MGMT allele. This observation may indicate cell ...

2011

In Vivo Studies on the Control of Gene Expression and Protein Degradation

Karolina Bojkowska

Cellular homeostasis is maintained by tightly regulated gene networks, controlled notably at the levels of transcription, mRNA processing, and protein post-translational modification and turnover. This thesis focuses on two of these regulatory steps, namel ...

EPFL2011

DNA-centered approaches to characterize regulatory protein–DNA interaction complexes

Bart Deplancke, Jovan Simicevic

Gene regulation is mediated by site-specific DNA-binding proteins or transcription factors (TFs), which form protein complexes at regulatory loci either to activate or repress the expression of a target gene. The study of the dynamic properties of these re ...

Royal Society of Chemistry2010

Studies on lentiviral-mediated transgenesis

Marc-Olivier Sauvain

Transgenic animals are essential research tools, whether to address basic biological questions or to develop preclinical models of human diseases. Their generation through the injection of naked plasmid DNA into the male pronucleus of a fertilized oocyte h ...

EPFL2009

Layer- and column-specific knockout of NMDA receptors in pyramidal neurons of the mouse barrel cortex

Carl Petersen

Viral vectors injected into the mouse brain offer the possibility for localized genetic modifications in a highly controlled manner. Lentivector injection into mouse neocortex transduces cells within a diameter of approximately 200mum, which closely matche ...

Frontiers Research Foundation2007