John McKinney

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Publications associées (74)

Early invasion of the bladder wall by solitary bacteria protects UPEC from antibiotics and neutrophil swarms in an organoid model

John McKinney, Graham Knott, Neeraj Dhar, Maria Clapés Cabrer, François Signorino-Gelo, Vivek Vijay Thacker, Kunal Sharma

2021

Dynamic persistence of UPEC intracellular bacterial communities in a human bladder-chip model of urinary tract infection

John McKinney, Graham Knott, Neeraj Dhar, François Signorino-Gelo, Vivek Vijay Thacker, Kunal Sharma, Thomas Marie Simonet

Uropathogenic Escherichia coli (UPEC) proliferate within superficial bladder umbrella cells to form intracellular bacterial communities (IBCs) during early stages of urinary tract infections. However, the dynamic responses of IBCs to host stresses and anti ...

2021

Microfluidic-assisted bioprinting of tissues and organoids at high cell concentrations

Philippe Renaud, Arnaud Bertsch, John McKinney, Ludovic Serex, Kunal Sharma

Despite its simplicity, which makes it the most commonly used bioprinting method today, extrusion-based bioprinting suffers from its inability to reproduce the complex tissue architecture found in organs. Generally, this printing method allows for the disp ...

IOP PUBLISHING LTD2021

Revealing Antibiotic Tolerance of the Mycobacterium smegmatis Xanthine/Uracil Permease Mutant Using Microfluidics and Single-Cell Analysis

John McKinney, Neeraj Dhar, Meltem Elitas

To reveal rare phenotypes in bacterial populations, conventional microbiology tools should be advanced to generate rapid, quantitative, accurate, and high-throughput data. The main drawbacks of widely used traditional methods for antibiotic studies include ...

MDPI2021

A biphasic growth model for cell pole elongation in mycobacteria

Georg Fantner, John McKinney, Haig Alexander Eskandarian, Mélanie Thérèse Marie Hannebelle, Chiara Toniolo, Joëlle Xiao Yuan Ven, Gaëlle Madeleine Vuaridel

Mycobacteria grow by inserting new cell wall material in discrete zones at the cell poles. This pattern implies that polar growth zones must be assembled de novo at each division, but the mechanisms that control the initiation of new pole growth are unknow ...

Nature Research2020

Overlapping and essential roles for molecular and mechanical mechanisms in mycobacterial cell division

Georg Fantner, John McKinney, Adrian Pascal Nievergelt, Pascal Damian Odermatt, Haig Alexander Eskandarian, Mélanie Thérèse Marie Hannebelle

Mechanisms to control cell division are essential for cell proliferation and survival. Bacterial cell growth and division require the coordinated activity of peptidoglycan synthases and hydrolytic enzymes to maintain mechanical integrity of the cell wall. ...

2020

Do chance encounters between heterogeneous cells shape the outcome of tuberculosis infections?

John McKinney, Ophélie Rutschmann, Chiara Toniolo

The sum of all of the interactions between single bacteria and host cells determines if an infection is cleared, controlled, or progresses at the whole host-organism level. These individual interactions have independent trajectories defined by diverse and ...

2020

A lung-on-chip model of early Mycobacterium tuberculosis infection reveals an essential role for alveolar epithelial cells in controlling bacterial growth

John McKinney, Neeraj Dhar, Vivek Vijay Thacker, Kunal Sharma

We establish a murine lung-on-chip infection model and use time-lapse imaging to reveal the dynamics of host-Mycobacterium tuberculosis interactions at an air-liquid interface with a spatiotemporal resolution unattainable in animal models and to probe the ...

2020

Preexisting variation in DNA damage response predicts the fate of single mycobacteria under stress

John McKinney, Neeraj Dhar, Giulia Manina, Lalit Kumar Singh

Clonal microbial populations are inherently heterogeneous, and this diversification is often considered as an adaptation strategy. In clinical infections, phenotypic diversity is found to be associated with drug tolerance, which in turn could evolve into g ...

2019

Time-Lapse Atomic Force Microscopy Reveals New End Take Off (Neto) Dynamics in Mycobacteria

Georg Fantner, John McKinney, Adrian Pascal Nievergelt, Haig Alexander Eskandarian, Chiara Toniolo, Mélanie Thérèse Marie Hannebelle, Joëlle Xiao Yuan Ven

CELL PRESS2019

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Revealing Antibiotic Tolerance of the Mycobacterium smegmatis Xanthine/Uracil Permease Mutant Using Microfluidics and Single-Cell Analysis

John McKinney, Neeraj Dhar, Meltem Elitas

MDPI2021

Early invasion of the bladder wall by solitary bacteria protects UPEC from antibiotics and neutrophil swarms in an organoid model

John McKinney, Graham Knott, Neeraj Dhar, Maria Clapés Cabrer, François Signorino-Gelo, Vivek Vijay Thacker, Kunal Sharma

2021

A lung-on-chip model of early Mycobacterium tuberculosis infection reveals an essential role for alveolar epithelial cells in controlling bacterial growth

John McKinney, Neeraj Dhar, Vivek Vijay Thacker, Kunal Sharma

2020