latent tuberculosis/hypoxia

Sábháiltear an nasc chuig an gearrthaisce

AiltTrialacha cliniciúlaPaitinní

Roghnaigh cineál sórtála

Leathanach 1 ó 16 torthaí

Bioinformatic and empirical analysis of novel hypoxia-inducible targets of the human antituberculosis T cell response.

Ní féidir ach le húsáideoirí cláraithe ailt a aistriú

Logáil Isteach / Cláraigh

We analyzed whole genome-based transcriptional profiles of Mycobacterium tuberculosis subjected to prolonged hypoxia to guide the discovery of novel potential Ags, by a combined bioinformatic and empirical approach. We analyzed the fold induction of the 100 most highly induced genes at 7 d of

Models of latent tuberculosis: their salient features, limitations, and development.

Ní féidir ach le húsáideoirí cláraithe ailt a aistriú

Logáil Isteach / Cláraigh

Latent tuberculosis is a subclinical condition caused by Mycobacterium tuberculosis, which affects about one-third of the population across the world. To abridge the chemotherapy of tuberculosis, it is necessary to have active drugs against latent form of M. tuberculosis. Therefore, it is imperative

A lacZ Reporter-Based Strategy for Rapid Expression Analysis and Target Validation of Mycobacterium tuberculosis Latent Infection Genes.

Ní féidir ach le húsáideoirí cláraithe ailt a aistriú

Logáil Isteach / Cláraigh

We report a novel lacZ fusion vector and demonstrate its utility for expression analysis of genes associated with Mycobacterium tuberculosis latent infection. The vector contains E. coli (oriE) and mycobacterial (oriM) origins of replication, a kanamycin resistance gene (Km(r)) as selection marker,

Identification and characterisation of small-molecule inhibitors of Rv3097c-encoded lipase (LipY) of Mycobacterium tuberculosis that selectively inhibit growth of bacilli in hypoxia.

Ní féidir ach le húsáideoirí cláraithe ailt a aistriú

Logáil Isteach / Cláraigh

The mycobacterial Rv3097c-encoded lipase LipY is considered as a true lipase involved in the hydrolysis of triacylglycerol stored in lipid inclusion bodies for the survival of dormant mycobacteria. To date, orlistat is the only known LipY inhibitor. In view of the important emerging role of this

Evaluation of BACTEC 460 TB system for rapid in vitro screening of drugs against latent state Mycobacterium tuberculosis H37Rv under hypoxia conditions.

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Logáil Isteach / Cláraigh

Mycobacterium tuberculosis exhibits latent state due to its ability to survive for extended periods under oxygen depletion conditions. The conventional plating method employed for in vitro screening of antitubercular agents against latent state M. tuberculosis is laborious and time consuming

Characterization of a novel necrotic granuloma model of latent tuberculosis infection and reactivation in mice.

Ní féidir ach le húsáideoirí cláraithe ailt a aistriú

Logáil Isteach / Cláraigh

We sought to develop and characterize a novel paucibacillary model in mice, which develops necrotic lung granulomas after infection with Mycobacterium tuberculosis. Six weeks after aerosol immunization with recombinant Mycobacterium bovis bacillus Calmette-Guerin overexpressing the 30-kDa antigen,

Transcription of genes involved in sulfolipid and polyacyltrehalose biosynthesis of Mycobacterium tuberculosis in experimental latent tuberculosis infection.

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Logáil Isteach / Cláraigh

The Influence of trehalose-based glycolipids in the virulence of Mycobacterium tuberculosis (Mtb) is recognised; however, the actual role of these cell-wall glycolipids in latent infection is unknown. As an initial approach, we determined by two-dimensional thin-layer chromatography the sulfolipid

Lazy, dynamic or minimally recrudescent? On the elusive nature and location of the mycobacterium responsible for latent tuberculosis.

Ní féidir ach le húsáideoirí cláraithe ailt a aistriú

Logáil Isteach / Cláraigh

In the absence of symptoms characteristic of tuberculosis (TB), a condition termed clinical latency, diagnosis is currently impossible by detection of the microorganism itself and resorts to the demonstration of an immunological memory response to antigens of Mycobacterium tuberculosis (Mtb).

Protein kinase G confers survival advantage to Mycobacterium tuberculosis during latency-like conditions.

Ní féidir ach le húsáideoirí cláraithe ailt a aistriú

Logáil Isteach / Cláraigh

Protein kinase G (PknG), a thioredoxin-fold-containing eukaryotic-like serine/threonine protein kinase, is a virulence factor in Mycobacterium tuberculosis, required for inhibition of phagolysosomal fusion. Here, we unraveled novel functional facets of PknG during latency-like conditions. We found

Dynamic exometabolome analysis reveals active metabolic pathways in non-replicating mycobacteria.

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Logáil Isteach / Cláraigh

An organism's metabolic activity leaves an extracellular footprint and dynamic changes in this exometabolome inform about nutrient uptake, waste disposal and signalling activities. Using non-targeted mass spectrometry, we report exometabolome dynamics of hypoxia-induced, non-replicating mycobacteria

Fumarate reductase activity maintains an energized membrane in anaerobic Mycobacterium tuberculosis.

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Logáil Isteach / Cláraigh

Oxygen depletion of Mycobacterium tuberculosis engages the DosR regulon that coordinates an overall down-regulation of metabolism while up-regulating specific genes involved in respiration and central metabolism. We have developed a chemostat model of M. tuberculosis where growth rate was a function

Nitrate enhances the survival of Mycobacterium tuberculosis during inhibition of respiration.

Ní féidir ach le húsáideoirí cláraithe ailt a aistriú

Logáil Isteach / Cláraigh

When oxygen is slowly depleted from growing cultures of Mycobacterium tuberculosis, they enter a state of nonreplicating persistence that resembles the dormant state seen with latent tuberculosis. In this hypoxic state, nitrate reductase activity is strongly induced. Nitrate in the medium had no

The pleiotropic transcriptional response of Mycobacterium tuberculosis to vitamin C is robust and overlaps with the bacterial response to multiple intracellular stresses.

Ní féidir ach le húsáideoirí cláraithe ailt a aistriú

Logáil Isteach / Cláraigh

Mycobacterium tuberculosis (Mtb) owes its success as a pathogen in large measure to its ability to exist in a persistent state of 'dormancy' resulting in a lifelong latent tuberculosis (TB) infection. An understanding of bacterial adaptation during dormancy will help in devising approaches to

Biosynthesis and recycling of nicotinamide cofactors in mycobacterium tuberculosis. An essential role for NAD in nonreplicating bacilli.

Ní féidir ach le húsáideoirí cláraithe ailt a aistriú

Logáil Isteach / Cláraigh

Despite the presence of genes that apparently encode NAD salvage-specific enzymes in its genome, it has been previously thought that Mycobacterium tuberculosis can only synthesize NAD de novo. Transcriptional analysis of the de novo synthesis and putative salvage pathway genes revealed an

Mycobacterium tuberculosis transcriptional adaptation, growth arrest and dormancy phenotype development is triggered by vitamin C.

Ní féidir ach le húsáideoirí cláraithe ailt a aistriú

Logáil Isteach / Cláraigh

BACKGROUND Tubercle bacilli are thought to persist in a dormant state during latent tuberculosis (TB) infection. Although little is known about the host factors that induce and maintain Mycobacterium tuberculosis (M. tb) within latent lesions, O(2) depletion, nutrient limitation and acidification

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