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Back-to-Africa introductions of Mycobacterium tuberculosis as the main cause of tuberculosis in Dar es Salaam, Tanzania

Publications associées (32)

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Genetic analysis of the decaprenyl-phospho-D-arabinofuranose pathway in Mycobacterium tuberculosis

Gaëlle Séraphine Kolly

The tuberculosis (TB) epidemic still represents a major global health problem as it kills more than one million people every year. Africa and Asia are arguably the most affected regions due to the dramatic increase of TB cases in HIV-positive patients and ...

EPFL2014

Mechanism of Action of 5-Nitrothiophenes against Mycobacterium tuberculosis

Stewart Cole, Ruben Hartkoorn

On using the streptomycin-starved 18b strain as a model for nonreplicating Mycobacterium tuberculosis, we identified a 5-nitrothiophene compound as highly active but not cytotoxic. Mutants resistant to 5-nitrothiophenes were found be cross-resistant to the ...

Amer Soc Microbiology2014

Phenotypic Profiling of Mycobacterium tuberculosis EspA Point Mutants Reveals that Blockage of ESAT-6 and CFP-10 Secretion In Vitro Does Not Always Correlate with Attenuation of Virulence

Stewart Cole, Neeraj Dhar, Florence Pojer, Ming Zhang, Jan Lars Rybniker, Jeffrey Chen, Anna De Graff Tischler

The EspA protein of Mycobacterium tuberculosis is essential for the type VII ESX-1 protein secretion apparatus, which delivers the principal virulence factors ESAT-6 and CFP-10. In this study, site-directed mutagenesis of EspA was performed to elucidate it ...

American Society for Microbiology2013

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The transketolase (TKT) enzyme in Mycobacterium tuberculosis represents a novel drug target for tuberculosis treatment and has low homology with the orthologous human enzyme. Here, we report on the structural and kinetic characterization of the transketola ...

Royal Soc2012

Atypical DNA recognition mechanism used by the EspR virulence regulator of Mycobacterium tuberculosis

Stewart Cole, Giovanni Dietler, Matteo Dal Peraro, Florence Pojer, Marco Stenta, Livan Bladimir Alonso Sarduy, Benjamin Blasco

The human pathogen Mycobacterium tuberculosis requires the ESX-1 secretion system for full virulence. EspR plays a key role in ESX-1 regulation via direct binding and transcriptional activation of the espACD operon. Here, we describe the crystal structures ...

Wiley-Blackwell2011

Given the global burden of tuberculosis, and more precisely of multidrug-resistant (MDR) tuberculosis (TB), one of the most pressing epidemiological issues is the study and prevention of transmission. The study aims to assess transmission within households ...

2010

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Benzothiazinones (BTZs) form a new class of potent antimycobacterial agents. Although the target of BTZs has been identified as decaprenylphosphoryl-β-D-ribose 2'-epimerase (DprE1), their detailed mechanism of action remains obscure. Here we demonstrate th ...

American Chemical Society2010

The twin arginine translocation (Tat) system is used by many bacteria to export fully folded proteins containing cofactors. Here, we show genetically that this system is essential for Mycobacterium tuberculosis, as the tatAC operon and tatB genes could be ...

2006

Genotypic analysis of Mycobacterium tuberculosis in Bangladesh and prevalence of the Beijing strain

Stewart Cole

Genotypic analysis was performed on 48 Mycobacterium tuberculosis complex strains collected from a hospital in Dhaka city. Deletion analysis showed that the isolates were all M. tuberculosis; 13 of them were found to be of the "ancestral" type, while 35 we ...

2004

The success of Mycobacterium tuberculosis as a pathogen is largely attributable to its ability to persist in host tissues, where drugs that are rapidly bactericidal in vitro require prolonged administration to achieve comparable effects. Latency is a frequ ...

2003