نتایج جستجو برای: phenotypic assays

تعداد نتایج: 173924  

2014
Andrea Bartolini Ilaria Frasson Antonietta Cavallaro Sara N Richter Giorgio Palù

BACKGROUND Multidrug resistance and, in particular, carbapenem resistance is spreading worldwide at an alarming rate, comprehending a variety of bacterial species and causing both nosocomial and community acquired outbursts. Early and efficient detection of infected patients or colonized carriers are mandatory steps in infection control and prevention of multidrug resistance diffusion. The late...

2016
Nathaniel R. Twarog Jonathan A. Low Duane G. Currier Greg Miller Taosheng Chen Anang A. Shelat Matthew Bogyo

Phenotypic screening through high-content automated microscopy is a powerful tool for evaluating the mechanism of action of candidate therapeutics. Despite more than a decade of development, however, high content assays have yielded mixed results, identifying robust phenotypes in only a small subset of compound classes. This has led to a combinatorial explosion of assay techniques, analyzing ce...

Journal: :The Journal of antimicrobial chemotherapy 2015
Elisa Rita Ceresola Silvia Nozza Michela Sampaolo Angela Rosa Pignataro Diego Saita Roberto Ferrarese Marco Ripa Wenjie Deng James I Mullins Enzo Boeri Giuseppe Tambussi Antonio Toniolo Adriano Lazzarin Massimo Clementi Filippo Canducci

OBJECTIVES Although founder viruses in primary HIV-1 infections (PHIs) typically use the CCR5 coreceptor (R5-tropic), 3%-19% of subjects also harbour CXCR4-using viruses (X4-tropic), making tropism determination before CCR5 antagonist usage mandatory. Genotypic methods can be used to accurately determine HIV-1 tropism in chronically infected patients. METHODS We compared the results of genoty...

2015
Timothy M Walker Thomas A Kohl Shaheed V Omar Jessica Hedge Carlos Del Ojo Elias Phelim Bradley Zamin Iqbal Silke Feuerriegel Katherine E Niehaus Daniel J Wilson David A Clifton Georgia Kapatai Camilla L C Ip Rory Bowden Francis A Drobniewski Caroline Allix-Béguec Cyril Gaudin Julian Parkhill Roland Diel Philip Supply Derrick W Crook E Grace Smith A Sarah Walker Nazir Ismail Stefan Niemann Tim E A Peto

BACKGROUND Diagnosing drug-resistance remains an obstacle to the elimination of tuberculosis. Phenotypic drug-susceptibility testing is slow and expensive, and commercial genotypic assays screen only common resistance-determining mutations. We used whole-genome sequencing to characterise common and rare mutations predicting drug resistance, or consistency with susceptibility, for all first-line...

Journal: :The Journal of antimicrobial chemotherapy 2012
Maria José Buzon Itziar Erkizia Christian Pou Gerard Minuesa Maria Carmen Puertas Anna Esteve Alfredo Castello Jose Ramón Santos Julia G Prado Nuria Izquierdo-Useros Theresa Pattery Margriet Van Houtte Luis Carrasco Bonaventura Clotet Lidia Ruiz Javier Martinez-Picado

OBJECTIVES HIV-1 genotyping is widely accepted as a diagnostic tool to optimize therapy changes in patients whose antiretroviral regimen is failing. Phenotyping can substantially complement the information obtained from genotyping, especially in the presence of complex mutational patterns. However, drug susceptibility tests are laborious and require biosafety facilities. We describe the molecul...

Journal: :Journal of Immunology 2023

Abstract Cellular therapies such as chimeric antigen receptor (CAR) T or NK cells undergo phenotypic characterization during discovery and development of novel therapies, biomanufacturing, upstream patient cell processing for clinical use. Samples are routinely analyzed via flow cytometry cell, B monocyte surface marker expression. Image systems perform cell-based assays that can be used a conv...

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