Publications associées à Vancomycine

Homogeneous vs. heterogeneous photo-Fenton elimination of antibiotic-resistant bacteria bearing intracellular or extracellular resistance: Do resistance mechanisms interfere with disinfection pathways?

César Pulgarin, Stefanos Giannakis, Truong-Thien Melvin Le, Jérémie Decker

The present study aimed to fill the knowledge gap between the implications of intracellular and extracellular antibiotic resistance mechanisms may inflict on the inactivation pathways of the photo-Fenton process under mild conditions. It was thus designed ...

Elsevier Sci Ltd2024

Loss of Bacterial Cell Pole Stabilization in Caulobacter crescentus Sensitizes to Outer Membrane Stress and Peptidoglycan-Directed Antibiotics

Gerardo Turcatti, Marc Chambon, Julien Bortoli Chapalay

Rod-shaped bacteria frequently localize proteins to one or both cellpoles in order to regulate processes such as chromosome replication or polar organ-elle development. However, the roles of polar factors in responses to extracellularstimuli have been gene ...

2020

Vancomycin resistance plasmids affect persistence of Enterococcus faecium in water

Suzanne Marie Young

Vancomycin resistant enterococci (VRE) cause 20,000 infections annually in the United States, most of which are nosocomial. Recent findings of VRE in sewage-contaminated surface waters demonstrate an alternate route of human exposure, and a possible settin ...

PERGAMON-ELSEVIER SCIENCE LTD2019

De novo identification of lipid II binding lipopeptides with antibacterial activity against vancomycin-resistant bacteria

Inmaculada Rentero Rebollo

Creative strategies for identifying new antibiotics are essential to addressing the looming threat of a post-antibiotic era. We here report the use of a targeted peptide phage display screen as a means of generating novel antimicrobial lipopeptides. Specif ...

Royal Soc Chemistry2017

Phage Selection of Cyclic Peptides for Application in Research and Drug Development

Christian Heinis, Xudong Kong, Kaycie Marie Butler

Cyclic peptides can bind to protein targets with high affinities and selectivities, which makes them an attractive modality for the development of research reagents and therapeutics. Additional properties, including low inherent toxicity, efficient chemica ...

2017

A benzamide-dependent ftsZ mutant reveals residues crucial for Z-ring assembly

David William Adams

In almost all bacteria, cell division is co-ordinated by the essential tubulin homologue FtsZ and represents an attractive but as yet unexploited target for new antibiotics. The benzamides, e.g. PC190723, are potent FtsZ inhibitors that have the potential ...

Wiley-Blackwell2016

Bactericidal activity and mechanism of action of copper-sputtered flexible surfaces against multidrug-resistant pathogens

César Pulgarin, Juan Kiwi, Sami Rtimi, Myriam Koumba Sarah Ballo

Using direct current magnetron sputtering (DCMS), we generated flexible copper polyester surfaces (Cu-PES) and investigated their antimicrobial activity against a range of multidrug-resistant (MDR) pathogens including eight Gram-positive isolates (three me ...

Springer Verlag2016

PGRP-SD, an Extracellular Pattern-Recognition Receptor, Enhances Peptidoglycan-Mediated Activation of the Drosophila Imd Pathway

Bruno Lemaitre, Igor Iatsenko

Activation of the innate immune response in Metazoans is initiated through the recognition of microbes by host pattern-recognition receptors. In Drosophila, diaminopimelic acid ( DAP)-containing peptidoglycan from Gram-negative bacteria is detected by the ...

Elsevier2016

Rapid Cytolysis of Mycobacterium tuberculosis by Faropenem, an Orally Bioavailable beta-Lactam Antibiotic

John McKinney, Neeraj Dhar, François Signorino-Gelo

Recent clinical studies indicate that meropenem, a beta-lactam antibiotic, is a promising candidate for therapy of drug-resistant tuberculosis. However, meropenem is chemically unstable, requires frequent intravenous injection, and must be combined with a ...

American Society for Microbiology2015

Novel Chemosensors for Biologically Important Analytes

Ziya Köstereli

In this work, fluorescent-based chemosensors for the detection of important analytes in aqueous solution are described. The sensors are based on different detection concepts, including analyte-induced aggregation/de-aggregation, pattern-based sensing and m ...

EPFL2015

DprE1-from the Discovery to the Promising Tuberculosis Drug Target

Joao Pedro De Almeida Neres

Several groups working in the field of the development of new antituberculosis drugs have recently reported active compounds targeting mycobacterial enzyme DprE1. Along with its counterpart, DprE2, it catalyses a unique epimerization reaction resulting in ...

Bentham Science Publ Ltd2014

Directed Evolution of Bicyclic Peptides for Therapeutic Application

Christian Heinis, Philippe Diderich

Many naturally occurring cyclic peptides or derivatives thereof are used as therapeutics such as the human hormones vasopressin and oxytocin or the antibiotics vancomycin and daptomycin. The success of cyclic peptide therapeutics is based on their ability ...

Schweizerische Chemische Gesellschaft2013

Design and Synthesis of 16-Membered Cyclopeptides Active Against Vancomycin-resistant Enterococci (VRE)

Jieping Zhu

The design, synthesis and antibiotic activities of the modified carboxylate binding pocket (D-O-E ring) of vancomycin (1) were summarized in this short account. The preliminary Structure-Activity Relationship (SAR) studies indicated that both the structure ...

Schweizerische Chemische Gesellschaft2013

Polycyclic Peptide Therapeutics

Christian Heinis, Vanessa Baeriswyl

Owing to their excellent binding properties, high stability, and low off-target toxicity, polycyclic peptides are an attractive molecule format for the development of therapeutics. Currently, only a handful of polycyclic peptides are used in the clinic; ex ...

Wiley-V C H Verlag Gmbh2013

Label-Free Recognition of Drug Resistance via Impedimetric Screening of Breast Cancer Cells

Philippe Renaud, Arnaud Bertsch, Robert Meissner, Bilge Eker

We present a novel study on label-free recognition and distinction of drug resistant breast cancer cells (MCF-7 DOX) from their parental cells (MCF-7 WT) via impedimetric measurements. Drug resistant cells exhibited significant differences in their dielect ...

Public Library of Science2013

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

Comparison of Methods for Evaluation of the Bactericidal Activity of Copper-Sputtered Surfaces against Methicillin-Resistant Staphylococcus aureus

César Pulgarin, Juan Kiwi

Bacteria can survive on hospital textiles and surfaces, from which they can be disseminated, representing a source of health care-associated infections (HCAIs). Surfaces containing copper (Cu), which is known for its bactericidal properties, could be an ef ...

American Society for Microbiology2012

Total Synthesis of (+/-)-Cylindricine C

Philippe Renaud, Kurt Schenk

A concise synthesis of (+/-)-cylindricine C and its C(13)-epimer is described. Starting from 1-octyne, cylindricine C and 13-epi-cylindricine C were prepared in 11% and 15% yields, respectively. The synthesis involves the preparation of the central tricycl ...

2011

Chemistry and Biology of Natural Products : Applications in Cancer and Infectious Diseases

Jean-Yves Wach

This thesis is divided in four independent parts related to four different research projects. Each chapter describes one of the multiple aspects covered by organic chemistry, such as the generation of functional interfaces, understanding of biological proc ...

EPFL2011

Leads for antitubercular compounds from kinase inhibitor library screens

Stewart Cole, Gerardo Turcatti, Marc Chambon, Damiano Banfi, Ruben Hartkoorn, Sophie Magnet, Edina Rita Székely

Discovering new drugs to treat tuberculosis more efficiently and to overcome multidrug resistance is a world health priority. To find antimycobacterial scaffolds, we screened a kinase inhibitor library of more than 12,000 compounds using an integrated stra ...

2010